deletions | additions       diff --git a/bibliography/refs.bib b/bibliography/refs.bib  index a6ff305..ab78752 100644  --- a/bibliography/refs.bib  +++ b/bibliography/refs.bib 
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@article{Eysenbach2011,   title={Can Tweets Predict Citations? Metrics of Social Impact Based on Twitter and Correlation with Traditional Metrics of Scientific Impact},  volume={13},   number={4},  journal={Journal of Medical Internet Research},  author={Eysenbach, Gunther},  year={2011},  month={Dec},   pages={123}  }  @article{brody,  Author = {Brody, Tim and Harnad, Stevan and Carr, Leslie},  Date-Modified = {2012-01-23 19:07:47 -0500}, 
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Year = {2006},  Bdsk-Url-1 = {http://dx.doi.org/10.1002/asi.20373}}  @article{Eysenbach2011,   title={Can Tweets Predict Citations? Metrics of Social Impact Based on Twitter and Correlation with Traditional Metrics of Scientific Impact},  volume={13},   number={4},  journal={Journal of Medical Internet Research},  author={Eysenbach, Gunther},  year={2011},  month={Dec},   pages={123},  }  @inproceedings{weller:2011,  Author = {Katrin Weller and Evelyn Dr\"oge and Cornelius Puschmann},  Booktitle = {Making Sense of Microposts {(\#MSM2011)}},