Correct 20th DGCI best student paper

dgciReview.html

@@ -69,7 +69,7 @@ <h5>20th DGCI:&nbsp;  19-21 September. 2017 - Vienna (Austria)</h5>
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-                                        <li><div class="beststudent">Best DGCI Student Paper award: <b>Youkana Imane</b> (with Jean Cousty, Rachida Saouli and Mohamed Akil), <i>Parallelization strategy for elementary morphological operators on graphs</i></div>
+                                        <li><div class="beststudent">Best DGCI Student Paper award: <b>Thomas Caissard</b> (with David Coeurjolly, Jacques-Olivier Lachaud, and Tristan Roussillon ), <a href="https://link.springer.com/chapter/10.1007/978-3-319-66272-5_20">Heat Kernel Laplace-Beltrami Operator on Digital Surfaces</a></div>
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