diff --git a/dhp-workflows/dhp-doiboost/src/main/java/eu/dnetlib/doiboost/DoiBoostMappingUtil.scala b/dhp-workflows/dhp-doiboost/src/main/java/eu/dnetlib/doiboost/DoiBoostMappingUtil.scala
new file mode 100644
index 0000000000..68a3231e06
--- /dev/null
+++ b/dhp-workflows/dhp-doiboost/src/main/java/eu/dnetlib/doiboost/DoiBoostMappingUtil.scala
@@ -0,0 +1,104 @@
+package eu.dnetlib.doiboost
+
+import eu.dnetlib.dhp.schema.oaf.{DataInfo, Dataset, Field, KeyValue, Qualifier, Result, StructuredProperty}
+import eu.dnetlib.dhp.utils.DHPUtils
+
+object DoiBoostMappingUtil {
+
+  //STATIC STRING
+  val MAG = "microsoft"
+  val ORCID = "ORCID"
+  val CROSSREF = "Crossref"
+  val UNPAYWALL = "UnpayWall"
+  val GRID_AC = "grid.ac"
+  val WIKPEDIA = "wikpedia"
+  val doiBoostNSPREFIX = "doiboost____"
+  val OPENAIRE_PREFIX = "openaire____"
+  val SEPARATOR = "::"
+  val DNET_LANGUAGES = "dnet:languages"
+  val PID_TYPES = "dnet:pid_types"
+
+
+
+  def generateDataInfo(): DataInfo = {
+    val di = new DataInfo
+    di.setDeletedbyinference(false)
+    di.setInferred(false)
+    di.setInvisible(false)
+    di.setTrust("0.9")
+    di.setProvenanceaction(createQualifier("sysimport:actionset", "dnet:provenanceActions"))
+    di
+  }
+
+
+  def createSP(value: String, classId: String, schemeId: String): StructuredProperty = {
+    val sp = new StructuredProperty
+    sp.setQualifier(createQualifier(classId, schemeId))
+    sp.setValue(value)
+    sp
+
+  }
+
+  def createSP(value: String, classId: String, schemeId: String, dataInfo: DataInfo): StructuredProperty = {
+    val sp = new StructuredProperty
+    sp.setQualifier(createQualifier(classId, schemeId))
+    sp.setValue(value)
+    sp.setDataInfo(dataInfo)
+    sp
+
+  }
+
+  def createCrossrefCollectedFrom(): KeyValue = {
+
+    val cf = new KeyValue
+    cf.setValue(CROSSREF)
+    cf.setKey("10|" + OPENAIRE_PREFIX + SEPARATOR + DHPUtils.md5("crossref"))
+    cf
+
+  }
+
+  def generateIdentifier(oaf: Result, doi: String): String = {
+    val id = DHPUtils.md5(doi.toLowerCase)
+    if (oaf.isInstanceOf[Dataset])
+      return s"60|${doiBoostNSPREFIX}${SEPARATOR}${id}"
+    s"50|${doiBoostNSPREFIX}${SEPARATOR}${id}"
+  }
+
+
+
+
+
+  def createMAGCollectedFrom(): KeyValue = {
+
+    val cf = new KeyValue
+    cf.setValue(MAG)
+    cf.setKey("10|" + OPENAIRE_PREFIX + SEPARATOR + DHPUtils.md5(MAG))
+    cf
+
+  }
+
+  def createQualifier(clsName: String, clsValue: String, schName: String, schValue: String): Qualifier = {
+    val q = new Qualifier
+    q.setClassid(clsName)
+    q.setClassname(clsValue)
+    q.setSchemeid(schName)
+    q.setSchemename(schValue)
+    q
+  }
+
+  def createQualifier(cls: String, sch: String): Qualifier = {
+    createQualifier(cls, cls, sch, sch)
+  }
+
+
+  def asField[T](value: T): Field[T] = {
+    val tmp = new Field[T]
+    tmp.setValue(value)
+    tmp
+
+
+  }
+
+
+
+}
diff --git a/dhp-workflows/dhp-doiboost/src/main/java/eu/dnetlib/doiboost/crossref/Crossref2Oaf.scala b/dhp-workflows/dhp-doiboost/src/main/java/eu/dnetlib/doiboost/crossref/Crossref2Oaf.scala
index 2d3b9a43a2..eda3bf17a5 100644
--- a/dhp-workflows/dhp-doiboost/src/main/java/eu/dnetlib/doiboost/crossref/Crossref2Oaf.scala
+++ b/dhp-workflows/dhp-doiboost/src/main/java/eu/dnetlib/doiboost/crossref/Crossref2Oaf.scala
@@ -14,6 +14,7 @@ import org.slf4j.{Logger, LoggerFactory}
 import scala.collection.JavaConverters._
 import scala.collection.mutable
 import scala.util.matching.Regex
+import eu.dnetlib.doiboost.DoiBoostMappingUtil._
 
 case class mappingAffiliation(name: String) {}
 
@@ -25,18 +26,7 @@ case class mappingFunder(name: String, DOI: Option[String], award: Option[List[S
 case object Crossref2Oaf {
   val logger: Logger = LoggerFactory.getLogger(Crossref2Oaf.getClass)
 
-  //STATIC STRING
-  val MAG = "MAG"
-  val ORCID = "ORCID"
-  val CROSSREF = "Crossref"
-  val UNPAYWALL = "UnpayWall"
-  val GRID_AC = "grid.ac"
-  val WIKPEDIA = "wikpedia"
-  val doiBoostNSPREFIX = "doiboost____"
-  val OPENAIRE_PREFIX = "openaire____"
-  val SEPARATOR = "::"
-  val DNET_LANGUAGES = "dnet:languages"
-  val PID_TYPES = "dnet:pid_types"
+
 
   val mappingCrossrefType = Map(
     "book-section" -> "publication",
@@ -116,7 +106,7 @@ case object Crossref2Oaf {
     result.setLastupdatetimestamp((json \ "indexed" \ "timestamp").extract[Long])
     result.setDateofcollection((json \ "indexed" \ "date-time").extract[String])
 
-    result.setCollectedfrom(List(createCollectedFrom()).asJava)
+    result.setCollectedfrom(List(createCrossrefCollectedFrom()).asJava)
 
     // Publisher ( Name of work's publisher mapped into  Result/Publisher)
     val publisher = (json \ "publisher").extractOrElse[String](null)
@@ -168,7 +158,7 @@ case object Crossref2Oaf {
     result.setInstance(List(instance).asJava)
     instance.setInstancetype(createQualifier(cobjCategory.substring(0, 4), cobjCategory.substring(5), "dnet:publication_resource", "dnet:publication_resource"))
 
-    instance.setCollectedfrom(createCollectedFrom())
+    instance.setCollectedfrom(createCrossrefCollectedFrom())
     if (StringUtils.isNotBlank(issuedDate)) {
       instance.setDateofacceptance(asField(issuedDate))
     }
@@ -215,7 +205,7 @@ case object Crossref2Oaf {
     val funderList: List[mappingFunder] = (json \ "funder").extractOrElse[List[mappingFunder]](List())
 
     if (funderList.nonEmpty) {
-      resultList = resultList ::: mappingFunderToRelations(funderList, result.getId, createCollectedFrom(), result.getDataInfo, result.getLastupdatetimestamp)
+      resultList = resultList ::: mappingFunderToRelations(funderList, result.getId, createCrossrefCollectedFrom(), result.getDataInfo, result.getLastupdatetimestamp)
     }
 
 
@@ -416,71 +406,8 @@ case object Crossref2Oaf {
   }
 
 
-  def generateIdentifier(oaf: Result, doi: String): String = {
-    val id = DHPUtils.md5(doi.toLowerCase)
-    if (oaf.isInstanceOf[Dataset])
-      return s"60|${doiBoostNSPREFIX}${SEPARATOR}${id}"
-    s"50|${doiBoostNSPREFIX}${SEPARATOR}${id}"
-  }
-
-  def asField[T](value: T): Field[T] = {
-    val tmp = new Field[T]
-    tmp.setValue(value)
-    tmp
 
 
-  }
-
-
-  def generateDataInfo(): DataInfo = {
-    val di = new DataInfo
-    di.setDeletedbyinference(false)
-    di.setInferred(false)
-    di.setInvisible(false)
-    di.setTrust("0.9")
-    di.setProvenanceaction(createQualifier("sysimport:actionset", "dnet:provenanceActions"))
-    di
-  }
-
-
-  def createSP(value: String, classId: String, schemeId: String): StructuredProperty = {
-    val sp = new StructuredProperty
-    sp.setQualifier(createQualifier(classId, schemeId))
-    sp.setValue(value)
-    sp
-
-  }
-
-  def createSP(value: String, classId: String, schemeId: String, dataInfo: DataInfo): StructuredProperty = {
-    val sp = new StructuredProperty
-    sp.setQualifier(createQualifier(classId, schemeId))
-    sp.setValue(value)
-    sp.setDataInfo(dataInfo)
-    sp
-
-  }
-
-  def createCollectedFrom(): KeyValue = {
-
-    val cf = new KeyValue
-    cf.setValue(CROSSREF)
-    cf.setKey("10|" + OPENAIRE_PREFIX + SEPARATOR + DHPUtils.md5("crossref"))
-    cf
-
-  }
-
-  def createQualifier(clsName: String, clsValue: String, schName: String, schValue: String): Qualifier = {
-    val q = new Qualifier
-    q.setClassid(clsName)
-    q.setClassname(clsValue)
-    q.setSchemeid(schName)
-    q.setSchemename(schValue)
-    q
-  }
-
-  def createQualifier(cls: String, sch: String): Qualifier = {
-    createQualifier(cls, cls, sch, sch)
-  }
 
 
   def generateItemFromType(objectType: String, objectSubType: String): Result = {
diff --git a/dhp-workflows/dhp-doiboost/src/main/java/eu/dnetlib/doiboost/mag/MagDataModel.scala b/dhp-workflows/dhp-doiboost/src/main/java/eu/dnetlib/doiboost/mag/MagDataModel.scala
index 189e90ed9a..17f0395ca0 100644
--- a/dhp-workflows/dhp-doiboost/src/main/java/eu/dnetlib/doiboost/mag/MagDataModel.scala
+++ b/dhp-workflows/dhp-doiboost/src/main/java/eu/dnetlib/doiboost/mag/MagDataModel.scala
@@ -1,52 +1,215 @@
 package eu.dnetlib.doiboost.mag
 
 
+import eu.dnetlib.dhp.schema.oaf.{Instance, Journal, Publication}
 import org.json4s
 import org.json4s.DefaultFormats
 import org.json4s.jackson.JsonMethods.parse
+import eu.dnetlib.doiboost.DoiBoostMappingUtil._
+
+import scala.collection.JavaConverters._
+import scala.collection.mutable
+import scala.util.matching.Regex
 
 
-case class Papers(PaperId:Long, Rank:Integer, Doi:String,
-                  DocType:String, PaperTitle:String, OriginalTitle:String,
-                  BookTitle:String, Year:Option[Integer], Date:Option[java.sql.Timestamp], Publisher:String,
-                  JournalId:Option[Long], ConferenceSeriesId:Option[Long], ConferenceInstanceId:Option[Long],
-                  Volume:String, Issue:String, FirstPage:String, LastPage:String,
-                  ReferenceCount:Option[Long], CitationCount:Option[Long], EstimatedCitation:Option[Long],
-                  OriginalVenue:String, FamilyId:Option[Long], CreatedDate:java.sql.Timestamp) {}
+case class MagPapers(PaperId: Long, Rank: Integer, Doi: String,
+                     DocType: String, PaperTitle: String, OriginalTitle: String,
+                     BookTitle: String, Year: Option[Integer], Date: Option[java.sql.Timestamp], Publisher: String,
+                     JournalId: Option[Long], ConferenceSeriesId: Option[Long], ConferenceInstanceId: Option[Long],
+                     Volume: String, Issue: String, FirstPage: String, LastPage: String,
+                     ReferenceCount: Option[Long], CitationCount: Option[Long], EstimatedCitation: Option[Long],
+                     OriginalVenue: String, FamilyId: Option[Long], CreatedDate: java.sql.Timestamp) {}
 
 
-case class PaperAbstract(PaperId:Long,IndexedAbstract:String) {}
+case class MagPaperAbstract(PaperId: Long, IndexedAbstract: String) {}
 
+case class MagAuthor(AuthorId: Long, Rank: Option[Int], NormalizedName: Option[String], DisplayName: Option[String], LastKnownAffiliationId: Option[Long], PaperCount: Option[Long], CitationCount: Option[Long], CreatedDate: Option[java.sql.Timestamp]) {}
+
+case class MagAffiliation(AffiliationId: Long, Rank: Int, NormalizedName: String, DisplayName: String, GridId: String, OfficialPage: String, WikiPage: String, PaperCount: Long, CitationCount: Long, Latitude: Option[Float], Longitude: Option[Float], CreatedDate: java.sql.Timestamp) {}
+
+case class MagPaperAuthorAffiliation(PaperId: Long, AuthorId: Long, AffiliationId: Option[Long], AuthorSequenceNumber: Int, OriginalAuthor: String, OriginalAffiliation: String) {}
+
+
+case class MagAuthorAffiliation(author: MagAuthor, affiliation:String)
+
+case class MagPaperWithAuthorList(PaperId: Long, authors: List[MagAuthorAffiliation]) {}
+
+case class MagPaperAuthorDenormalized(PaperId: Long, author: MagAuthor, affiliation:String) {}
+
+case class MagPaperUrl(PaperId: Long, SourceType: Option[Int], SourceUrl: Option[String], LanguageCode: Option[String]) {}
+
+case class MagUrl(PaperId: Long, instances: List[String])
+
+
+case class MagJournal(JournalId: Long, Rank: Option[Int], NormalizedName: Option[String], DisplayName: Option[String], Issn: Option[String], Publisher: Option[String], Webpage: Option[String], PaperCount: Option[Long], CitationCount: Option[Long], CreatedDate: Option[java.sql.Timestamp]) {}
 
 
 case object ConversionUtil {
 
+  def extractMagIdentifier(pids:mutable.Buffer[String]) :String ={
+    val magIDRegex: Regex = "^[0-9]+$".r
+    val s =pids.filter(p=> magIDRegex.findAllIn(p).hasNext)
 
-
-  def transformPaperAbstract(input:PaperAbstract) : PaperAbstract = {
-    PaperAbstract(input.PaperId, convertInvertedIndexString(input.IndexedAbstract))
+    if (s.nonEmpty)
+      return s.head
+    null
   }
 
 
 
-  def convertInvertedIndexString(json_input:String) :String = {
+  def addInstances(a: (Publication, MagUrl)): Publication = {
+    val pub = a._1
+    val urls = a._2
+
+
+    val i = new Instance
+
+
+    if (urls!= null) {
+
+      val l:List[String] = urls.instances.filter(k=>k.nonEmpty):::List(s"https://academic.microsoft.com/#/detail/${extractMagIdentifier(pub.getOriginalId.asScala)}")
+
+      i.setUrl(l.asJava)
+    }
+    else
+      i.setUrl(List(s"https://academic.microsoft.com/#/detail/${extractMagIdentifier(pub.getOriginalId.asScala)}").asJava)
+
+    i.setCollectedfrom(createMAGCollectedFrom())
+    pub.setInstance(List(i).asJava)
+    pub
+  }
+
+
+  def transformPaperAbstract(input: MagPaperAbstract): MagPaperAbstract = {
+    MagPaperAbstract(input.PaperId, convertInvertedIndexString(input.IndexedAbstract))
+  }
+
+
+  def createOAFFromJournalAuthorPaper(inputParams: ((MagPapers, MagJournal), MagPaperWithAuthorList)): Publication = {
+    val paper = inputParams._1._1
+    val journal = inputParams._1._2
+    val authors = inputParams._2
+
+    val pub = new Publication
+    pub.setPid(List(createSP(paper.Doi.toLowerCase, "doi", PID_TYPES)).asJava)
+    pub.setOriginalId(List(paper.PaperId.toString, paper.Doi.toLowerCase).asJava)
+
+    //Set identifier as {50|60} | doiboost____::md5(DOI)
+    pub.setId(generateIdentifier(pub, paper.Doi.toLowerCase))
+
+    val mainTitles = createSP(paper.PaperTitle, "main title", "dnet:dataCite_title")
+    val originalTitles = createSP(paper.OriginalTitle, "alternative title", "dnet:dataCite_title")
+    pub.setTitle(List(mainTitles, originalTitles).asJava)
+
+    pub.setSource(List(asField(paper.BookTitle)).asJava)
+
+    val authorsOAF = authors.authors.map { f: MagAuthorAffiliation =>
+
+      val a: eu.dnetlib.dhp.schema.oaf.Author = new eu.dnetlib.dhp.schema.oaf.Author
+
+      a.setFullname(f.author.DisplayName.get)
+
+      if(f.affiliation!= null)
+        a.setAffiliation(List(asField(f.affiliation)).asJava)
+      a.setPid(List(createSP(s"https://academic.microsoft.com/#/detail/${f.author.AuthorId}", "URL", PID_TYPES)).asJava)
+      a
+    }
+    pub.setAuthor(authorsOAF.asJava)
+
+
+    if (paper.Date != null && paper.Date.isDefined) {
+      pub.setDateofacceptance(asField(paper.Date.get.toString))
+    }
+    pub.setPublisher(asField(paper.Publisher))
+
+
+    if (journal != null && journal.DisplayName.isDefined) {
+      val j = new Journal
+
+      j.setName(journal.DisplayName.get)
+      j.setSp(paper.FirstPage)
+      j.setEp(paper.LastPage)
+      if (journal.Publisher.isDefined)
+        j.setEdition(journal.Publisher.get)
+      if (journal.Issn.isDefined)
+        j.setIssnPrinted(journal.Issn.get)
+      pub.setJournal(j)
+    }
+    pub
+  }
+
+
+  def createOAF(inputParams: ((MagPapers, MagPaperWithAuthorList), MagPaperAbstract)): Publication = {
+
+    val paper = inputParams._1._1
+    val authors = inputParams._1._2
+    val description = inputParams._2
+
+    val pub = new Publication
+    pub.setPid(List(createSP(paper.Doi.toLowerCase, "doi", PID_TYPES)).asJava)
+    pub.setOriginalId(List(paper.PaperId.toString, paper.Doi.toLowerCase).asJava)
+
+    //Set identifier as {50|60} | doiboost____::md5(DOI)
+    pub.setId(generateIdentifier(pub, paper.Doi.toLowerCase))
+
+    val mainTitles = createSP(paper.PaperTitle, "main title", "dnet:dataCite_title")
+    val originalTitles = createSP(paper.OriginalTitle, "alternative title", "dnet:dataCite_title")
+    pub.setTitle(List(mainTitles, originalTitles).asJava)
+
+    pub.setSource(List(asField(paper.BookTitle)).asJava)
+
+
+    if (description != null) {
+      pub.setDescription(List(asField(description.IndexedAbstract)).asJava)
+    }
+
+
+    val authorsOAF = authors.authors.map { f: MagAuthorAffiliation =>
+
+      val a: eu.dnetlib.dhp.schema.oaf.Author = new eu.dnetlib.dhp.schema.oaf.Author
+
+      a.setFullname(f.author.DisplayName.get)
+
+      if(f.affiliation!= null)
+        a.setAffiliation(List(asField(f.affiliation)).asJava)
+
+
+      a.setPid(List(createSP(s"https://academic.microsoft.com/#/detail/${f.author.AuthorId}", "URL", PID_TYPES)).asJava)
+
+      a
+
+    }
+
+
+    if (paper.Date != null) {
+      pub.setDateofacceptance(asField(paper.Date.toString))
+    }
+
+    pub.setAuthor(authorsOAF.asJava)
+
+
+    pub
+
+  }
+
+
+  def convertInvertedIndexString(json_input: String): String = {
     implicit lazy val formats: DefaultFormats.type = org.json4s.DefaultFormats
     lazy val json: json4s.JValue = parse(json_input)
-
-
-
     val idl = (json \ "IndexLength").extract[Int]
-
     if (idl > 0) {
       val res = Array.ofDim[String](idl)
 
       val iid = (json \ "InvertedIndex").extract[Map[String, List[Int]]]
 
-      for {(k:String,v:List[Int]) <- iid}{
+      for {(k: String, v: List[Int]) <- iid} {
         v.foreach(item => res(item) = k)
       }
+     (0 until idl).foreach(i => {
+       if (res(i) == null)
+         res(i) = ""
+     })
       return res.mkString(" ")
-
     }
     ""
   }
diff --git a/dhp-workflows/dhp-doiboost/src/main/java/eu/dnetlib/doiboost/mag/SparkPreProcessMAG.scala b/dhp-workflows/dhp-doiboost/src/main/java/eu/dnetlib/doiboost/mag/SparkPreProcessMAG.scala
index 4c014a95cf..a0e20be1aa 100644
--- a/dhp-workflows/dhp-doiboost/src/main/java/eu/dnetlib/doiboost/mag/SparkPreProcessMAG.scala
+++ b/dhp-workflows/dhp-doiboost/src/main/java/eu/dnetlib/doiboost/mag/SparkPreProcessMAG.scala
@@ -1,13 +1,17 @@
 package eu.dnetlib.doiboost.mag
 
 import eu.dnetlib.dhp.application.ArgumentApplicationParser
+import eu.dnetlib.dhp.schema.oaf.Publication
+import eu.dnetlib.doiboost.DoiBoostMappingUtil.asField
 import org.apache.commons.io.IOUtils
 import org.apache.spark.SparkConf
 import org.apache.spark.rdd.RDD
-import org.apache.spark.sql.{Dataset, SaveMode, SparkSession}
+import org.apache.spark.sql.{Dataset, Encoder, Encoders, SaveMode, SparkSession}
 import org.slf4j.{Logger, LoggerFactory}
 import org.apache.spark.sql.functions._
 
+import scala.collection.JavaConverters._
+
 object SparkPreProcessMAG {
 
 
@@ -23,15 +27,21 @@ object SparkPreProcessMAG {
         .config(conf)
         .appName(getClass.getSimpleName)
         .master(parser.get("master")).getOrCreate()
+
+    val sourcePath = parser.get("sourcePath")
     import spark.implicits._
+    implicit val mapEncoderPubs: Encoder[Publication] = org.apache.spark.sql.Encoders.kryo[Publication]
+    implicit val tupleForJoinEncoder = Encoders.tuple(Encoders.STRING, mapEncoderPubs)
+
+
 
     logger.info("Phase 1) make uninque DOI in Papers:")
 
-    val d: Dataset[Papers] = spark.read.load(s"${parser.get("sourcePath")}/Papers").as[Papers]
+    val d: Dataset[MagPapers] = spark.read.load(s"${parser.get("sourcePath")}/Papers").as[MagPapers]
 
 
     // Filtering Papers with DOI, and since for the same DOI we have multiple version of item with different PapersId we get the last one
-    val result: RDD[Papers] = d.where(col("Doi").isNotNull).rdd.map { p: Papers => Tuple2(p.Doi, p) }.reduceByKey { case (p1: Papers, p2: Papers) =>
+    val result: RDD[MagPapers] = d.where(col("Doi").isNotNull).rdd.map { p: MagPapers => Tuple2(p.Doi, p) }.reduceByKey { case (p1: MagPapers, p2: MagPapers) =>
       var r = if (p1 == null) p2 else p1
       if (p1 != null && p2 != null) {
         if (p1.CreatedDate != null && p2.CreatedDate != null) {
@@ -46,16 +56,83 @@ object SparkPreProcessMAG {
       r
     }.map(_._2)
 
-    val distinctPaper: Dataset[Papers] = spark.createDataset(result)
+    val distinctPaper: Dataset[MagPapers] = spark.createDataset(result)
     distinctPaper.write.mode(SaveMode.Overwrite).save(s"${parser.get("targetPath")}/Papers_distinct")
     logger.info(s"Total number of element: ${result.count()}")
 
-    logger.info("Phase 2) convert InverdIndex Abastrac to string")
-    val pa = spark.read.load(s"${parser.get("sourcePath")}/PaperAbstractsInvertedIndex").as[PaperAbstract]
+    logger.info("Phase 3) Group Author by PaperId")
+    val authors = spark.read.load(s"$sourcePath/Authors").as[MagAuthor]
+
+    val affiliation =spark.read.load(s"$sourcePath/Affiliations").as[MagAffiliation]
+
+    val paperAuthorAffiliation =spark.read.load(s"$sourcePath/PaperAuthorAffiliations").as[MagPaperAuthorAffiliation]
+
+
+    paperAuthorAffiliation.joinWith(authors, paperAuthorAffiliation("AuthorId").equalTo(authors("AuthorId")))
+      .map{case (a:MagPaperAuthorAffiliation,b:MagAuthor )=>  (a.AffiliationId,MagPaperAuthorDenormalized(a.PaperId, b, null)) }
+      .joinWith(affiliation, affiliation("AffiliationId").equalTo(col("_1")), "left")
+      .map(s => {
+          val mpa = s._1._2
+          val af = s._2
+          if (af!= null) {
+            MagPaperAuthorDenormalized(mpa.PaperId, mpa.author, af.DisplayName)
+          } else
+            mpa
+        }).groupBy("PaperId").agg(collect_list(struct($"author", $"affiliation")).as("authors"))
+      .write.mode(SaveMode.Overwrite).save(s"${parser.get("targetPath")}/merge_step_1_paper_authors")
+
+
+
+    logger.info("Phase 4) create First Version of publication Entity with Paper Journal and Authors")
+
+
+    val journals = spark.read.load(s"$sourcePath/Journals").as[MagJournal]
+
+    val papers =spark.read.load((s"${parser.get("targetPath")}/Papers_distinct")).as[MagPapers]
+
+    val paperWithAuthors = spark.read.load(s"${parser.get("targetPath")}/merge_step_1_paper_authors").as[MagPaperWithAuthorList]
+
+
+
+    val firstJoin =papers.joinWith(journals, papers("JournalId").equalTo(journals("JournalId")),"left")
+    firstJoin.joinWith(paperWithAuthors, firstJoin("_1.PaperId").equalTo(paperWithAuthors("PaperId")), "left")
+      .map { a: ((MagPapers, MagJournal), MagPaperWithAuthorList) => ConversionUtil.createOAFFromJournalAuthorPaper(a) }.write.mode(SaveMode.Overwrite).save(s"${parser.get("targetPath")}/merge_step_2")
+
+
+
+    var magPubs:Dataset[(String,Publication)] = spark.read.load(s"${parser.get("targetPath")}/merge_step_2").as[Publication].map(p => (ConversionUtil.extractMagIdentifier(p.getOriginalId.asScala), p)).as[(String,Publication)]
+
+    val paperUrlDataset = spark.read.load(s"$sourcePath/PaperUrls").as[MagPaperUrl].groupBy("PaperId").agg(collect_list(struct("sourceUrl")).as("instances")).as[MagUrl]
+
+
+    logger.info("Phase 5) enrich publication with URL and Instances")
+
+    magPubs.joinWith(paperUrlDataset, col("_1").equalTo(paperUrlDataset("PaperId")), "left")
+      .map{a:((String,Publication), MagUrl) => ConversionUtil.addInstances((a._1._2, a._2))}
+      .write.mode(SaveMode.Overwrite)
+      .save(s"${parser.get("targetPath")}/merge_step_3")
+
+
+
+    logger.info("Phase 6) Enrich Publication with description")
+    val pa = spark.read.load(s"${parser.get("sourcePath")}/PaperAbstractsInvertedIndex").as[MagPaperAbstract]
     pa.map(ConversionUtil.transformPaperAbstract).write.mode(SaveMode.Overwrite).save(s"${parser.get("targetPath")}/PaperAbstract")
 
+    val paperAbstract =spark.read.load((s"${parser.get("targetPath")}/PaperAbstract")).as[MagPaperAbstract]
 
-    distinctPaper.joinWith(pa, col("PaperId").eqia)
+
+    magPubs = spark.read.load(s"${parser.get("targetPath")}/merge_step_3").as[Publication].map(p => (ConversionUtil.extractMagIdentifier(p.getOriginalId.asScala), p)).as[(String,Publication)]
+
+    magPubs.joinWith(paperAbstract,col("_1").equalTo(paperAbstract("PaperId")), "left").map(p=>
+      {
+        val pub = p._1._2
+        val abst = p._2
+        if (abst!= null) {
+          pub.setDescription(List(asField(abst.IndexedAbstract)).asJava)
+        }
+        pub
+        }
+       ).write.mode(SaveMode.Overwrite).save(s"${parser.get("targetPath")}/merge_step_4")
 
   }
 
diff --git a/dhp-workflows/dhp-doiboost/src/main/resources/eu/dnetlib/dhp/doiboost/mag/oozie_app/workflow.xml b/dhp-workflows/dhp-doiboost/src/main/resources/eu/dnetlib/dhp/doiboost/mag/oozie_app/workflow.xml
index ba6eea3646..2277b79b0f 100644
--- a/dhp-workflows/dhp-doiboost/src/main/resources/eu/dnetlib/dhp/doiboost/mag/oozie_app/workflow.xml
+++ b/dhp-workflows/dhp-doiboost/src/main/resources/eu/dnetlib/dhp/doiboost/mag/oozie_app/workflow.xml
@@ -72,6 +72,7 @@
                 --executor-memory=${sparkExecutorMemory}
                 --executor-cores=${sparkExecutorCores}
                 --driver-memory=${sparkDriverMemory}
+                --conf spark.sql.shuffle.partitions=3840
                 ${sparkExtraOPT}
             </spark-opts>
             <arg>--sourcePath</arg><arg>${sourcePath}</arg>
diff --git a/dhp-workflows/dhp-doiboost/src/main/resources/eu/dnetlib/dhp/doiboost/orcid_gen_authors/oozie_app/config-default.xml b/dhp-workflows/dhp-doiboost/src/main/resources/eu/dnetlib/dhp/doiboost/orcid_gen_authors/oozie_app/config-default.xml
index 3726022cbf..a720e75923 100644
--- a/dhp-workflows/dhp-doiboost/src/main/resources/eu/dnetlib/dhp/doiboost/orcid_gen_authors/oozie_app/config-default.xml
+++ b/dhp-workflows/dhp-doiboost/src/main/resources/eu/dnetlib/dhp/doiboost/orcid_gen_authors/oozie_app/config-default.xml
@@ -11,6 +11,10 @@
             <name>queueName</name>
             <value>default</value>
     </property>
+    <property>
+        <name>oozie.use.system.libpath</name>
+        <value>true</value>
+    </property>
     <property>
         <name>oozie.action.sharelib.for.spark</name>
         <value>spark2</value>
diff --git a/dhp-workflows/dhp-doiboost/src/main/resources/eu/dnetlib/dhp/doiboost/orcid_gen_authors/oozie_app/workflow.xml b/dhp-workflows/dhp-doiboost/src/main/resources/eu/dnetlib/dhp/doiboost/orcid_gen_authors/oozie_app/workflow.xml
index a4d65ed000..f258fae6e8 100644
--- a/dhp-workflows/dhp-doiboost/src/main/resources/eu/dnetlib/dhp/doiboost/orcid_gen_authors/oozie_app/workflow.xml
+++ b/dhp-workflows/dhp-doiboost/src/main/resources/eu/dnetlib/dhp/doiboost/orcid_gen_authors/oozie_app/workflow.xml
@@ -16,6 +16,10 @@
             <name>sparkExecutorCores</name>
             <description>number of cores used by single executor</description>
         </property>
+        <property>
+            <name>outputPath</name>
+            <description>the working dir base path</description>
+        </property>
     </parameters>
     
     <start to="ResetWorkingPath"/>
@@ -47,6 +51,7 @@
             </spark-opts>
             <arg>-mt</arg> <arg>yarn</arg>
             <arg>--workingPath_orcid</arg><arg>${workingPath_activities}/</arg>
+            <arg>-o</arg><arg>${outputPath}/</arg>
         </spark>
         <ok to="End"/>
         <error to="Kill"/>
diff --git a/dhp-workflows/dhp-doiboost/src/test/java/eu/dnetlib/doiboost/mag/MAGMappingTest.scala b/dhp-workflows/dhp-doiboost/src/test/java/eu/dnetlib/doiboost/mag/MAGMappingTest.scala
index 0aaaeb3777..4d26969dd9 100644
--- a/dhp-workflows/dhp-doiboost/src/test/java/eu/dnetlib/doiboost/mag/MAGMappingTest.scala
+++ b/dhp-workflows/dhp-doiboost/src/test/java/eu/dnetlib/doiboost/mag/MAGMappingTest.scala
@@ -1,10 +1,21 @@
 package eu.dnetlib.doiboost.mag
 
-import org.codehaus.jackson.map.ObjectMapper
+import eu.dnetlib.dhp.schema.oaf.Publication
+import org.apache.htrace.fasterxml.jackson.databind.SerializationFeature
+import org.apache.spark.SparkConf
+import org.apache.spark.api.java.function.MapFunction
+import org.apache.spark.sql.{Dataset, Encoder, Encoders, SaveMode, SparkSession}
+import org.codehaus.jackson.map.{ObjectMapper, SerializationConfig}
 import org.junit.jupiter.api.Test
 import org.slf4j.{Logger, LoggerFactory}
 import org.junit.jupiter.api.Assertions._
+import org.apache.spark.sql.functions._
+
+import scala.collection.JavaConverters._
 import scala.io.Source
+import scala.reflect.ClassTag
+import scala.util.matching.Regex
+
 
 
 class MAGMappingTest {
@@ -13,14 +24,49 @@ class MAGMappingTest {
   val mapper = new ObjectMapper()
 
 
-  //@Test
+  @Test
   def testMAGCSV(): Unit = {
-    SparkPreProcessMAG.main("-m local[*] -s /data/doiboost/mag/datasets -t /data/doiboost/mag/datasets/preprocess".split(" "))
+    // SparkPreProcessMAG.main("-m local[*] -s /data/doiboost/mag/datasets -t /data/doiboost/mag/datasets/preprocess".split(" "))
+
+    val sparkConf: SparkConf = new SparkConf
+
+    val spark: SparkSession = SparkSession.builder()
+      .config(sparkConf)
+      .appName(getClass.getSimpleName)
+      .master("local[*]")
+      .getOrCreate()
+
+    import spark.implicits._
+
+
+    implicit val mapEncoderPubs: Encoder[Publication] = org.apache.spark.sql.Encoders.kryo[Publication]
+    implicit val longBarEncoder = Encoders.tuple(Encoders.STRING, mapEncoderPubs)
+
+    val sourcePath = "/data/doiboost/mag/input"
+
+    mapper.getSerializationConfig.enable(SerializationConfig.Feature.INDENT_OUTPUT)
+
+
+   val magOAF = spark.read.load("$sourcePath/merge_step_4").as[Publication]
+
+   println(magOAF.first().getOriginalId)
+
+
+   magOAF.map(k => (ConversionUtil.extractMagIdentifier(k.getOriginalId.asScala),k)).as[(String,Publication)].show()
+
+
+    println((ConversionUtil.extractMagIdentifier(magOAF.first().getOriginalId.asScala)))
+
+    val magIDRegex: Regex = "^[0-9]+$".r
+
+
+    println(magIDRegex.findFirstMatchIn("suca").isDefined)
+
   }
 
 
   @Test
-  def buildInvertedIndexTest() :Unit = {
+  def buildInvertedIndexTest(): Unit = {
     val json_input = Source.fromInputStream(getClass.getResourceAsStream("invertedIndex.json")).mkString
     val description = ConversionUtil.convertInvertedIndexString(json_input)
     assertNotNull(description)
@@ -32,3 +78,5 @@ class MAGMappingTest {
 
 
 }
+
+