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 3f6a26c46..7dd07b1c4 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
@@ -8,7 +8,7 @@ import eu.dnetlib.doiboost.DoiBoostMappingUtil._
 import org.apache.commons.lang.StringUtils
 import org.json4s
 import org.json4s.DefaultFormats
-import org.json4s.JsonAST._
+import org.json4s.JsonAST.{JValue, _}
 import org.json4s.jackson.JsonMethods._
 import org.slf4j.{Logger, LoggerFactory}
 
@@ -409,6 +409,14 @@ case object Crossref2Oaf {
   }
 
 
+  def extractDump(input:String):List[String] = {
+    implicit lazy val formats: DefaultFormats.type = org.json4s.DefaultFormats
+    lazy val json: json4s.JValue = parse(input)
+
+    val a = (json \ "items").extract[JArray]
+    a.arr.map(s => compact(render(s)))
+  }
+
   def convertPublication(publication: Publication, json: JValue, cobjCategory: String): Unit = {
     implicit lazy val formats: DefaultFormats.type = org.json4s.DefaultFormats
     val containerTitles = for {JString(ct) <- json \ "container-title"} yield ct