deletions | additions       diff --git a/bibliography/biblio.bib b/bibliography/biblio.bib  index 1e34eb8..6da3e80 100644  --- a/bibliography/biblio.bib  +++ b/bibliography/biblio.bib 
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title = {{Weighting of topologically different interactions in a model of two-dimensional polymer collapse}},  journal = {Physical Review E},  }  @book{Darwin_1900,  doi = {10.5962/bhl.title.46292},  url = {http://dx.doi.org/10.5962/bhl.title.46292},  year = {1900},  publisher = {Smithsonian Institution},  author = {Charles Darwin},  title = {{The origin of species by Charles Darwin.}},  }