deletions | additions       diff --git a/bibliography/biblio.bib b/bibliography/biblio.bib  index f78d176..dc5b317 100644  --- a/bibliography/biblio.bib  +++ b/bibliography/biblio.bib 
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pages={264--281},  year={1995},  publisher={INFORMS}  }  @article{luEtal2013,  title={Robust vertex p-center model for locating urgent relief distribution centers},  author={Lu, Chung-Cheng and Sheu, Jiuh-Biing},  journal={Computers \& Operations Research},  volume={40},  number={8},  pages={2128--2137},  year={2013},  publisher={Elsevier}  }