deletions | additions       diff --git a/bibliography/refs.bib b/bibliography/refs.bib  index ab78752..b79e4f0 100644  --- a/bibliography/refs.bib  +++ b/bibliography/refs.bib 
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Bdsk-Url-1 = {http://dx.doi.org/10.1002/asi.20373}}  @article{Eysenbach2011,   title={Can 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 volume = {13},   number = {4},  journal = {Journal  of Medical Internet Research}, author={Eysenbach, author = {Eysenbach,  Gunther}, year={2011},  month={Dec},   pages={123}, year = {2011},  month = {Dec},   pages = {123},  }  @inproceedings{weller:2011,