deletions | additions       diff --git a/bibliography/biblio.bib b/bibliography/biblio.bib  index 04e28b0..0f8cbf3 100644  --- a/bibliography/biblio.bib  +++ b/bibliography/biblio.bib 
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title = {{An evaluation of {FUNSOFT} nets}},  booktitle = {Software Process Technology},  }  @incollection{Gruhn_1995,  doi = {10.1007/bfb0020539},  url = {http://dx.doi.org/10.1007/bfb0020539},  year = {1995},  publisher = {Springer Science $\mathplus$ Business Media},  pages = {270--281},  author = {Volker Gruhn and Claus Pahl and Monika Wever},  title = {{Data model evolution as a basis of business process management}},  booktitle = {{OOER} {\textquotesingle}95: Object-Oriented and Entity-Relationship Modeling},  }