add preprints

Author: peitek

index.html

@@ -140,7 +140,7 @@ <h3>Indentation: Simply a Matter of Style or Support for Program Comprehension?
                 <h4>Resources</h4>
                 <ul class="resources">
                     <li><a href="https://github.com/brains-on-code/indentation">Replication Package</a></li>
-                    <li><a href="#">Paper, PDF (coming soon)</a></li>
+                    <li><a href="https://www.infosun.fim.uni-passau.de/publications/docs/Bauer19.pdf">Paper, PDF</a></li>
                 </ul>
             </article>
 
@@ -161,7 +161,7 @@ <h3>CodersMUSE: Multi-Modal Data Exploration of Program-Comprehension Experiment
                 <h4>Resources</h4>
                 <ul class="resources">
                     <li><a href="https://github.com/brains-on-code">Tool Website: Open-Source Code, Sample Data, Demo Video</a></li>
-                    <li><a href="#">Paper, PDF (coming soon)</a></li>
+                    <li><a href="https://www.infosun.fim.uni-passau.de/publications/docs/Peitek19.pdf">Paper, PDF</a></li>
                 </ul>
             </article>