diff --git a/.gitignore b/.gitignore
index 397b2627f403aa97705b732cc3c00d59a19f44ef..9dea3edf638c6dc0581193c79c04055047c3d823 100644
--- a/.gitignore
+++ b/.gitignore
@@ -36,6 +36,13 @@ playground.R
 *.synctex.gz
 *.synctex.gz(busy)
 *.pdfsync
+## Bibliography auxiliary files (bibtex/biblatex/biber):
+*.bbl
+*.bcf
+*.blg
+*-blx.aux
+*-blx.bib
+*.brf
 
 ## Emacs
 .#*