@Misc{Kitsak2010,
  author = {Kitsak, Maksim and Gallos, Lazaros K. and Havlin, Shlomo and Liljeros, Fredrik and Muchnik, Lev and Stanley, H. Eugene and Makse, Hernan A.},
  title  = {Identifying influential spreaders in complex networks},

  year   = {2010},
  number = {},
  url    = {http://arxiv.org/abs/1001.5285},

  const  = {\ text}
}
@Article{chen:058701,
  author = {Chen, Yiping and Paul, Gerald and Havlin, Shlomo and Liljeros, Fredrik and Stanley, H. Eugene},
  title  = {Finding a Better Immunization Strategy},
  journal = {Physical Review Letters},
  year   = {2008},
  number = {5},
  url    = {http://link.aps.org/abstract/PRL/v101/e058701},
  doi = {10.1103/PhysRevLett.101.058701},
  const  = {\ text}
}