deletions | additions       diff --git a/bibliography/biblio.bib b/bibliography/biblio.bib  index 710c5c9..e0f1fac 100644  --- a/bibliography/biblio.bib  +++ b/bibliography/biblio.bib 
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@misc{Ziegler_2011_PIC,  author = {James F. Ziegler and M.D. Ziegler and J.P. Biersack},  title = {{Hydrogen in Copper}},  howpublished = {{{{{{{{{{http://www.srim.org/SRIM/SRIMPICS/STOP01/STOP0129.gif}}}}}}}}}}}, {{{{{{{{{{{http://www.srim.org/SRIM/SRIMPICS/STOP01/STOP0129.gif}}}}}}}}}}}},  year = {2011},  note = {[Online; accessed 21-Aug-2015]},  } 
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journal = {The Journal of Chemical Physics},  }  @article{Bader_Site,  doi = {http://theory.cm.utexas.edu/henkelman/code/bader/},  url = {http://theory.cm.utexas.edu/henkelman/code/bader/},  title = {{http://theory.cm.utexas.edu/henkelman/code/bader/}},  }  @article{Perdew_1996,  doi = {10.1103/physrevlett.77.3865},  url = {http://dx.doi.org/10.1103/physrevlett.77.3865},  year = {1996},  month = {oct},  publisher = {American Physical Society ({APS})},  volume = {77},  number = {18},  pages = {3865--3868},  author = {John P. Perdew and Kieron Burke and Matthias Ernzerhof},  title = {{Generalized Gradient Approximation Made Simple}},  journal = {Phys. Rev. Lett.},  }