deletions | additions       diff --git a/bibliography/biblio.bib b/bibliography/biblio.bib  index 06fc999..fd50b8d 100644  --- a/bibliography/biblio.bib  +++ b/bibliography/biblio.bib 
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volume = 6,  pages = {152--191}}    @article{garey1979computers,  title={Computers and intractability: a guide to the theory of NP-completeness. 1979},  author={Garey, Michael R and Johnson, David S},  journal={San Francisco, LA: Freeman},  year={1979}  }  @article{garey1979computers,  title={Computers and intractability: a guide to the theory of NP-completeness. 1979},  author={Garey, Michael R and Johnson, David S},