diff --git a/_bibliography/papers.bib b/_bibliography/papers.bib
index ce201ff..63d92ac 100644
--- a/_bibliography/papers.bib
+++ b/_bibliography/papers.bib
@@ -74,7 +74,7 @@ @article{einstein1905electrodynamics
   year={1905}
 }
 
-@book{przibram1967letters,
+@book{przibram1967letters and some other users,
   bibtex_show={true},
   title={Letters on wave mechanics},
   author={Einstein, Albert and Schrödinger, Erwin and Planck, Max and Lorentz, Hendrik Antoon and Przibram, Karl},