diff --git a/references.bib b/references.bib
index 6138c89..8bc1d51 100644
--- a/references.bib
+++ b/references.bib
@@ -558,3 +558,10 @@
   keywords = {Apparent specialization,coevolution,generalization,modularity,nestedness,plant–pollinator interactions,pollen analysis,pollination web,sampling effort},
   file = {/home/polarolouis/Zotero/storage/C5TQ6Y49/Bosch et al. - 2009 - Plant–pollinator networks adding the pollinator’s perspective.pdf;/home/polarolouis/Zotero/storage/BHMVU3DU/j.1461-0248.2009.01296.html}
 }
+
+@article{beauguitteAnalyseGraphesBipartis,
+  title = {L'analyse des graphes bipartis},
+  author = {Beauguitte, Laurent},
+  langid = {french},
+  file = {/home/polarolouis/Zotero/storage/JN3DD4XS/Beauguitte - L'analyse des graphes bipartis.pdf}
+}