diff --git a/src/main/java/eu/dnetlib/dhp/schema/dump/oaf/AccessRight.java b/src/main/java/eu/dnetlib/dhp/schema/dump/oaf/AccessRight.java
index f28c544..b973f5b 100644
--- a/src/main/java/eu/dnetlib/dhp/schema/dump/oaf/AccessRight.java
+++ b/src/main/java/eu/dnetlib/dhp/schema/dump/oaf/AccessRight.java
@@ -13,6 +13,8 @@ public class AccessRight extends Qualifier {
 
 	private String scheme;
 
+	private OpenAccessRoute openAccessRoute ;
+
 	public String getScheme() {
 		return scheme;
 	}
@@ -28,4 +30,12 @@ public class AccessRight extends Qualifier {
 		ar.setScheme(scheme);
 		return ar;
 	}
+
+	public OpenAccessRoute getOpenAccessRoute() {
+		return openAccessRoute;
+	}
+
+	public void setOpenAccessRoute(OpenAccessRoute openAccessRoute) {
+		this.openAccessRoute = openAccessRoute;
+	}
 }
diff --git a/src/main/java/eu/dnetlib/dhp/schema/dump/oaf/Instance.java b/src/main/java/eu/dnetlib/dhp/schema/dump/oaf/Instance.java
index c4ec7b1..826e65c 100644
--- a/src/main/java/eu/dnetlib/dhp/schema/dump/oaf/Instance.java
+++ b/src/main/java/eu/dnetlib/dhp/schema/dump/oaf/Instance.java
@@ -16,9 +16,16 @@ import java.util.List;
  * String to store information abour tthe review status of the instance. Possible values are 'Unknown',
  * 'nonPeerReviewed', 'peerReviewed'. It corresponds to refereed.classname of the instance to be dumped
  * - articleprocessingcharge of type APC to store the article processing charges possibly associated to the instance
+ * -pid of type List<ControlledField> that is the list of pids associated to the result coming from authoritative sources for that pid
+ * -alternateIdentifier of type List<ControlledField> that is the list of pids associated to the result coming from NON authoritative
+ * sources for that pid
  */
 public class Instance implements Serializable {
 
+	private List<ControlledField> pid;
+
+	private List<ControlledField> alternateIdentifier;
+
 	private String license;
 
 	private AccessRight accessright;
@@ -88,4 +95,20 @@ public class Instance implements Serializable {
 	public void setArticleprocessingcharge(APC articleprocessingcharge) {
 		this.articleprocessingcharge = articleprocessingcharge;
 	}
+
+	public List<ControlledField> getPid() {
+		return pid;
+	}
+
+	public void setPid(List<ControlledField> pid) {
+		this.pid = pid;
+	}
+
+	public List<ControlledField> getAlternateIdentifier() {
+		return alternateIdentifier;
+	}
+
+	public void setAlternateIdentifier(List<ControlledField> alternateIdentifier) {
+		this.alternateIdentifier = alternateIdentifier;
+	}
 }
diff --git a/src/main/java/eu/dnetlib/dhp/schema/dump/oaf/OpenAccessRoute.java b/src/main/java/eu/dnetlib/dhp/schema/dump/oaf/OpenAccessRoute.java
new file mode 100644
index 0000000..fbef655
--- /dev/null
+++ b/src/main/java/eu/dnetlib/dhp/schema/dump/oaf/OpenAccessRoute.java
@@ -0,0 +1,13 @@
+
+package eu.dnetlib.dhp.schema.dump.oaf;
+
+/**
+ * This Enum models the OpenAccess status, currently including only the values from Unpaywall
+ *
+ * https://support.unpaywall.org/support/solutions/articles/44001777288-what-do-the-types-of-oa-status-green-gold-hybrid-and-bronze-mean-
+ */
+public enum OpenAccessRoute {
+
+	gold, green, hybrid, bronze
+
+}
diff --git a/src/main/java/eu/dnetlib/dhp/schema/dump/oaf/Result.java b/src/main/java/eu/dnetlib/dhp/schema/dump/oaf/Result.java
index 88ab2c3..1981776 100644
--- a/src/main/java/eu/dnetlib/dhp/schema/dump/oaf/Result.java
+++ b/src/main/java/eu/dnetlib/dhp/schema/dump/oaf/Result.java
@@ -62,9 +62,12 @@ import eu.dnetlib.dhp.schema.dump.oaf.community.Project;
  * to store information about the time OpenAIRE collected the record. It corresponds to dateofcollection of the result
  * represented in the internal model - lasteupdatetimestamp of type String to store the timestamp of the last update of
  * the record. It corresponds to lastupdatetimestamp of the resord represented in the internal model
+ * -measure list<KeyValue> to represent the measure of beepFinder. It corresponds to measures in the model
  */
 public class Result implements Serializable {
 
+	private List<KeyValue> measures;
+
 	private List<Author> author;
 
 	// resulttype allows subclassing results into publications | datasets | software
@@ -376,4 +379,12 @@ public class Result implements Serializable {
 	public void setGeolocation(List<GeoLocation> geolocation) {
 		this.geolocation = geolocation;
 	}
+
+	public List<KeyValue> getMeasures() {
+		return measures;
+	}
+
+	public void setMeasures(List<KeyValue> measures) {
+		this.measures = measures;
+	}
 }
diff --git a/src/main/java/eu/dnetlib/dhp/schema/oaf/Measure.java b/src/main/java/eu/dnetlib/dhp/schema/oaf/Measure.java
index c0c14d1..e88ff73 100644
--- a/src/main/java/eu/dnetlib/dhp/schema/oaf/Measure.java
+++ b/src/main/java/eu/dnetlib/dhp/schema/oaf/Measure.java
@@ -16,7 +16,7 @@ public class Measure {
 	private String id;
 
 	/**
-	 * List of units associated with this measure. KeyValue provides a pair to store the laber (key) and the value, plus
+	 * List of units associated with this measure. KeyValue provides a pair to store the label (key) and the value, plus
 	 * common provenance information.
 	 */
 	private List<KeyValue> unit;