deletions | additions       diff --git a/bibliography/biblio.bib b/bibliography/biblio.bib  index e02facf..78145e4 100644  --- a/bibliography/biblio.bib  +++ b/bibliography/biblio.bib 
...
month = "Jan",  pages = "35-39",  }  @article{Einstein_1916,  title = "Die Grundlage der allgemeinen Relativitätstheorie",  volume = "354",  url = "http://dx.doi.org/10.1002/andp.19163540702",  doi = "10.1002/andp.19163540702",  number = "7",  journal = "Annalen der Physik",  publisher = "Wiley Blackwell (John Wiley & Sons)",  author = "Einstein, A.",  year = "1916",  pages = "769-822",  }