deletions | additions       diff --git a/bibliography/biblio.bib b/bibliography/biblio.bib  index 4bdf955..4d25674 100644  --- a/bibliography/biblio.bib  +++ b/bibliography/biblio.bib 
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journal = {{ApJ}},  }  @article{Usov_1992,  doi = {10.1038/357472a0},  url = {http://dx.doi.org/10.1038/357472a0}, 
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journal = {Nature},  }  @ARTICLE{1991AcA....41..257P,  author = {{Paczynski}, B.},  title = {{Cosmological gamma-ray bursts}},  journal = {\actaa},  keywords = {Gamma Ray Bursts, Neutron Stars, Gamma Ray Observatory, Gravitational Lenses, Milky Way Galaxy, Spectral Correlation},  year = {1991},  volume = {41},  pages = {257-267},  adsurl = {http://adsabs.harvard.edu/abs/1991AcA....41..257P},  adsnote = {Provided by the SAO/NASA Astrophysics Data System},  }