diff --git a/index.md b/index.md
index 1042be355ffbb88589cca570c71ed77d46a91e99..6a785161c34bcd49e607e9d6237af1522cbf0524 100644
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@@ -52,7 +52,7 @@ Chaîne *BBB* du cours <https://bbb.hesge.ch/b/ore-xff-hkz-poh>
 
 ## Exercices
 
-### 23.05.2023: Barbes euh... B-arbres, [HTML](https://malaspinas.academy/prog_seq_c_tp/b_arbres/index.html), [PDF](https://malaspinas.academy/prog_seq_c_tp/b_arbres/b_arbres.pdf), [GIT](https://gitedu.hesge.ch/programmation_sequentielle/travaux_pratiques/c_lang/b_arbres/enonce)
+### 23.05.2023: Barbes euh... B-arbres, [HTML](https://malaspinas.academy/prog_seq_c_tp/b_arbres/index.html), [PDF](https://malaspinas.academy/prog_seq_c_tp/b_arbres/b_arbres.pdf), [HEADER](https://malaspinas.academy/prog_seq_c_tp/b_arbres/b_arbre.h), [SQUELETTE](https://malaspinas.academy/prog_seq_c_tp/b_arbres/b_arbre_skel.c) [GIT](https://gitedu.hesge.ch/programmation_sequentielle/travaux_pratiques/c_lang/b_arbres/enonce)
 
 ### 16.05.2023: Classification, [HTML](https://malaspinas.academy/prog_seq_c_tp/classification/index.html), [PDF](https://malaspinas.academy/prog_seq_c_tp/classification/classification.pdf), [GIT](https://gitedu.hesge.ch/programmation_sequentielle/travaux_pratiques/c_lang/classification/enonce)