deletions | additions       diff --git a/bibliography/biblio.bib b/bibliography/biblio.bib  index d603ff5..684cc2f 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]},  }