diff --git a/content/pages/2020/programma.md b/content/pages/2020/programma.md
index fd901c4..674d8e0 100644
--- a/content/pages/2020/programma.md
+++ b/content/pages/2020/programma.md
@@ -44,8 +44,8 @@ Legenda:
 </tr>
 
 <tr>
-<td class="icon">&#160;</i></a></td>
-<td class="icon">&#160;</td>
+<td class="icon"><a href="https://www.libreitalia.org/wp-content/uploads/2021/01/tdf-digitalsovereigntyshort.pdf" target="_blank"><i class="far fa-file-pdf"></i></a></td>
+<td class="icon"><a href="https://www2.slideshare.net/libreitalia/foss-and-open-standards-for-digital-sovereignty/libreitalia/foss-and-open-standards-for-digital-sovereignty" target="_blank"><i class="fab fa-slideshare"></i></a></td>
 <td class="icon"><a href="https://peertube.uno/videos/watch/8e017d2a-3ca2-4a76-8050-920d0a1d2b7c" target="_blank"><i class="fas fa-play-circle"></i></a></td>
 <td class="icon"><a href="https://www.youtube.com/watch?v=UAJ3WQO7-Zc" target="_blank"><i class="fab fa-youtube"></i></a></td>
 <td class="hours">&#160;</td>