@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}
}