deletions | additions       diff --git a/bibliography/biblio.bib b/bibliography/biblio.bib  index 981bf58..259bdcd 100644  --- a/bibliography/biblio.bib  +++ b/bibliography/biblio.bib 
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title = {{The role of antibiotics and antibiotic resistance in nature}},  journal = {Environmental Microbiology},  }  @article{Hall_2004,  doi = {10.1016/j.drup.2004.02.003},  url = {http://dx.doi.org/10.1016/j.drup.2004.02.003},  year = {2004},  month = {apr},  publisher = {Elsevier {BV}},  volume = {7},  number = {2},  pages = {111--123},  author = {Barry G Hall and Miriam Barlow},  title = {{Evolution of the serine $\upbeta$-lactamases: past present and future}},  journal = {Drug Resistance Updates},  }