deletions | additions       diff --git a/bibliography/biblio.bib b/bibliography/biblio.bib  index 1d4032b..e02facf 100644  --- a/bibliography/biblio.bib  +++ b/bibliography/biblio.bib 
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adsurl = "http://adsabs.harvard.edu/abs/1938AnMat..39...65E",  adsnote = "Provided by the SAO/NASA Astrophysics Data System",  }  @article{Einstein_1948,  title = "A Generalized Theory of Gravitation",  volume = "20",  url = "http://dx.doi.org/10.1103/RevModPhys.20.35",  doi = "10.1103/RevModPhys.20.35",  number = "1",  journal = "Reviews of Modern Physics",  publisher = "American Physical Society",  author = "Einstein, Albert",  year = "1948",  month = "Jan",  pages = "35-39",  }