diff --git a/src/main/java/org/apache/maven/shared/artifact/filter/resolve/Node.java b/src/main/java/org/apache/maven/shared/artifact/filter/resolve/Node.java
index 1ccec0f..95d6a0f 100644
--- a/src/main/java/org/apache/maven/shared/artifact/filter/resolve/Node.java
+++ b/src/main/java/org/apache/maven/shared/artifact/filter/resolve/Node.java
@@ -19,6 +19,13 @@
  * under the License.
  */
 
+/**
+ * Represents a node of a dependency graph
+ * 
+ * @author Robert Scholte
+ * @since 3.0
+ *
+ */
 public interface Node
 {
     org.apache.maven.model.Dependency getDependency();
diff --git a/src/main/java/org/apache/maven/shared/artifact/filter/resolve/transform/EclipseAetherNode.java b/src/main/java/org/apache/maven/shared/artifact/filter/resolve/transform/EclipseAetherNode.java
index d0e874b..b5c1c1f 100644
--- a/src/main/java/org/apache/maven/shared/artifact/filter/resolve/transform/EclipseAetherNode.java
+++ b/src/main/java/org/apache/maven/shared/artifact/filter/resolve/transform/EclipseAetherNode.java
@@ -24,6 +24,12 @@
 import org.eclipse.aether.graph.Dependency;
 import org.eclipse.aether.graph.DependencyNode;
 
+/**
+ * Adapter of an Eclipse Aether DependencyNode for common Node 
+ * 
+ * @author Robert Scholte
+ * @since 3.0
+ */
 public class EclipseAetherNode implements Node
 {
 
diff --git a/src/main/java/org/apache/maven/shared/artifact/filter/resolve/transform/SonatypeAetherNode.java b/src/main/java/org/apache/maven/shared/artifact/filter/resolve/transform/SonatypeAetherNode.java
index 7931b7a..e8a2ed6 100644
--- a/src/main/java/org/apache/maven/shared/artifact/filter/resolve/transform/SonatypeAetherNode.java
+++ b/src/main/java/org/apache/maven/shared/artifact/filter/resolve/transform/SonatypeAetherNode.java
@@ -24,6 +24,12 @@
 import org.sonatype.aether.graph.DependencyNode;
 import org.sonatype.aether.util.artifact.ArtifactProperties;
 
+/**
+ * Adapter of a Sonatype Aether DependencyNode for common Node
+ * 
+ * @author Robert Scholte
+ * @since 3.0
+ */
 public class SonatypeAetherNode implements Node
 {