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@@ -72,7 +72,7 @@ <h3><a name="publications">Selected Publications</a></h3>
 
                 <p> The following lists contain only selected publications. Consult <a href="https://dblp.uni-trier.de/pid/204/1616.html">dblp</a> for a more complete list of publications.</p>
 
-                <h3>Approximate String Matching</h3>
+                <h4>Approximate String Matching</h4>
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@@ -114,7 +114,7 @@ <h3>Approximate String Matching</h3>
                     </tbody>
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-                <h3>Counting (Small) Patterns in Graphs</h3>
+                <h4>Counting (Small) Patterns in Graphs</h4>
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