reuse-tree: extend documentation

[skip ci]

Author: mtf90

filters/reuse/pom.xml

@@ -28,7 +28,10 @@ limitations under the License.
     <artifactId>learnlib-reuse</artifactId>
 
     <name>LearnLib :: Filters :: Reuse</name>
-    <description>Reuse Tree for (intelligently) caching membership queries</description>
+    <description>Reuse Tree for (intelligently) caching membership queries as described in the paper "Reusing System
+        States by Active Learning Algorithms" (https://doi.org/10.1007/978-3-642-28033-7_6) by Oliver Bauer, Johannes
+        Neubauer, Bernhard Steffen, and Falk Howar.
+    </description>
 
     <dependencies>
         <!-- internal -->

filters/reuse/src/main/java/module-info.java

@@ -15,7 +15,9 @@
  */
 
 /**
- * This module provides a reuse tree for (intelligently) caching membership queries.
+ * This module provides a reuse tree for (intelligently) caching membership queries as described in the paper <a
+ * href="https://doi.org/10.1007/978-3-642-28033-7_6">Reusing System States by Active Learning Algorithms</a> by Oliver
+ * Bauer, Johannes Neubauer, Bernhard Steffen, and Falk Howar.
  * <p>
  * This module is provided by the following Maven dependency:
  * <pre>