@Inproceedings{hristova2012mapping,
  author = {Hristova, Desislava and Mashhadi, Afra and Quattrone, Giovanni and Capra, Licia},
  title  = {Mapping Community Engagement with Urban Crowd-Sourcing},

  year   = {2012},
  number = {},
  url    = {http://www.cs.ucl.ac.uk/staff/l.capra/publications/wcmcw12.pdf},

  const  = {\ text}
}
@Article{pham2011development,
  author = {Pham, Manh and Klamma, Ralf and Jarke, Matthias},
  title  = {Development of computer science disciplines: a social network analysis approach},
  journal = {Social Network Analysis and Mining},
  year   = {2011},
  number = {4},
  url    = {http://dx.doi.org/10.1007/s13278-011-0024-x},
  doi = {10.1007/s13278-011-0024-x},
  const  = {\ text}
}