@Misc{shuai2012scientific,
  author = {Shuai, Xin and Pepe, Alberto and Bollen, Johan},
  title  = {How the Scientific Community Reacts to Newly Submitted Preprints:
  Article Downloads, Twitter Mentions, and Citations},

  year   = {2012},
  number = {},
  url    = {http://arxiv.org/abs/1202.2461},

  const  = {\ text}
}
@Article{brody2006earlier,
  author = {Brody, Tim and Harnad, Stevan and Carr, Leslie},
  title  = {Earlier Web usage statistics as predictors of later citation impact},
  journal = {Journal of the American Society for Information Science and Technology},
  year   = {2006},
  number = {8},
  url    = {http://dx.doi.org/10.1002/asi.20373},
  doi = {10.1002/asi.20373},
  const  = {\ text}
}