deletions | additions       diff --git a/bibliography/refs.bib b/bibliography/refs.bib  index b79e4f0..ffc5553 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 Title  = {Can Tweets Predict Citations? Metrics of Social Impact Based on Twitter and Correlation with Traditional Metrics of Scientific Impact}, volume Volume  = {13}, number Number  = {4}, journal Journal  = {Journal of Medical Internet Research}, author Author  = {Eysenbach, Gunther}, year Year  = {2011}, month Month  = {Dec}, pages Pages  = {123},  } {123},}  @inproceedings{weller:2011,  Author = {Katrin Weller and Evelyn Dr\"oge and Cornelius Puschmann},