diff --git a/pom.xml b/pom.xml
index 1eb5fe9..158f7bb 100644
--- a/pom.xml
+++ b/pom.xml
@@ -122,8 +122,6 @@
 		</dependency>
 
 		<!-- Commons -->
-
-
 		<dependency>
 			<groupId>org.apache.commons</groupId>
 			<artifactId>commons-lang3</artifactId>
@@ -134,16 +132,23 @@
 			<artifactId>commons-codec</artifactId>
 		</dependency>
 
-		<dependency>
-			<groupId>commons-io</groupId>
-			<artifactId>commons-io</artifactId>
-		</dependency>
-
 		<dependency>
 			<groupId>org.apache.commons</groupId>
 			<artifactId>commons-pool2</artifactId>
 		</dependency>
 		
+		<!-- XML -->
+		<dependency>
+			<groupId>org.dom4j</groupId>
+			<artifactId>dom4j</artifactId>
+			<version>2.1.4</version>
+		</dependency>
+		
+		<dependency>
+			<groupId>jaxen</groupId>
+			<artifactId>jaxen</artifactId>
+		</dependency>
+		
 		<!-- DHP SCHEMAS  -->
 		<dependency>
 			<groupId>eu.dnetlib.dhp</groupId>
@@ -167,13 +172,14 @@
 		<dependency>
 			<groupId>org.apache.solr</groupId>
 			<artifactId>solr-solrj</artifactId>
-			<version>${apache.solr.version}</version>
+			<version>9.7.0</version>
 		</dependency>
 				
 		<!-- Swagger -->
 		<dependency>
 			<groupId>org.springdoc</groupId>
 			<artifactId>springdoc-openapi-ui</artifactId>
+			<version>1.6.10</version>
 		</dependency>
 
 		<dependency>
@@ -195,6 +201,7 @@
 		<dependency>
 			<groupId>org.apache.maven</groupId>
 			<artifactId>maven-model</artifactId>
+			<version>3.8.1</version>
 		</dependency>
 		
 		<!-- For tests -->
@@ -218,63 +225,6 @@
 
 	</dependencies>
 
-	<dependencyManagement>
-		<dependencies>
-
-			<dependency>
-				<groupId>commons-cli</groupId>
-				<artifactId>commons-cli</artifactId>
-				<version>1.4</version>
-			</dependency>
-
-			<dependency>
-				<groupId>commons-codec</groupId>
-				<artifactId>commons-codec</artifactId>
-				<version>1.9</version>
-			</dependency>
-
-			<dependency>
-				<groupId>commons-io</groupId>
-				<artifactId>commons-io</artifactId>
-				<version>2.10.0</version>
-			</dependency>
-
-			<dependency>
-				<groupId>dom4j</groupId>
-				<artifactId>dom4j</artifactId>
-				<version>1.6.1</version>
-			</dependency>
-
-			<dependency>
-				<groupId>xml-apis</groupId>
-				<artifactId>xml-apis</artifactId>
-				<version>1.4.01</version>
-			</dependency>
-
-			<dependency>
-				<groupId>jaxen</groupId>
-				<artifactId>jaxen</artifactId>
-				<version>1.1.6</version>
-			</dependency>
-
-			<dependency>
-				<groupId>org.apache.maven</groupId>
-				<artifactId>maven-model</artifactId>
-				<version>3.8.1</version>
-			</dependency>
-
-			<!-- Swagger -->
-			<dependency>
-				<groupId>org.springdoc</groupId>
-				<artifactId>springdoc-openapi-ui</artifactId>
-				<version>1.6.10</version>
-			</dependency>
-
-
-
-		</dependencies>
-	</dependencyManagement>
-
 	<build>
 		<directory>target</directory>
 		<outputDirectory>target/classes</outputDirectory>
@@ -373,7 +323,6 @@
 		<javamelody.version>1.71.0</javamelody.version>
 		<maven.javadoc.failOnError>false</maven.javadoc.failOnError>
 		<dockerfile-maven-version>1.3.6</dockerfile-maven-version>
-		<bioschemas-commons-io-version>2.6</bioschemas-commons-io-version>
 		<jetty.version>10.0.22</jetty.version>
 	</properties>
 </project>
diff --git a/src/main/java/eu/dnetlib/app/directindex/solr/SolrIndexClient.java b/src/main/java/eu/dnetlib/app/directindex/solr/SolrIndexClient.java
index e5b1c39..c6e90fc 100644
--- a/src/main/java/eu/dnetlib/app/directindex/solr/SolrIndexClient.java
+++ b/src/main/java/eu/dnetlib/app/directindex/solr/SolrIndexClient.java
@@ -58,6 +58,9 @@ public class SolrIndexClient {
 	}
 
 	private SolrInputDocument prepareSolrDocument(final SolrRecord record) {
+
+		final String xml = XMLSolrSerializer.generateXML(record);
+
 		// TODO (usare classe condivisa preparata da Claudio)
 
 		return null;
diff --git a/src/main/java/eu/dnetlib/app/directindex/solr/XMLSolrSerializer.java b/src/main/java/eu/dnetlib/app/directindex/solr/XMLSolrSerializer.java
new file mode 100644
index 0000000..d2b00d5
--- /dev/null
+++ b/src/main/java/eu/dnetlib/app/directindex/solr/XMLSolrSerializer.java
@@ -0,0 +1,18 @@
+package eu.dnetlib.app.directindex.solr;
+
+import org.dom4j.Document;
+import org.dom4j.DocumentHelper;
+
+import eu.dnetlib.dhp.schema.solr.SolrRecord;
+
+public class XMLSolrSerializer {
+
+	public static String generateXML(final SolrRecord record) {
+		final Document doc = DocumentHelper.createDocument();
+
+		// TODO
+
+		return doc.asXML();
+	}
+
+}