diff --git a/additionals/references.tex b/additionals/references.tex
index 0b4e480..e42a264 100644
--- a/additionals/references.tex
+++ b/additionals/references.tex
@@ -6,12 +6,12 @@
 \defbibheading{article}{\section*{Beiträge in Zeitungen und Zeitschriften}}
 \defbibheading{incollection}{\section*{Beiträge in Sammelbänden}}
 \defbibfilter{incollection}{
+    type=inproceedings or    
     type=incollection or
     type=inbook
 }
 \defbibheading{paper}{\section*{Papers}}
 \defbibfilter{paper}{
-    type=inproceedings or
     type=thesis or
     type=report
 }