SpinellisL08'

@article{DBLP:journals/cacm/SpinellisL08,
  author    = {Diomidis Spinellis and
               Panagiotis Louridas},
  title     = {The collaborative organization of knowledge},
  journal   = {Commun. ACM},
  volume    = {51},
  number    = {8},
  year      = {2008},
  pages     = {68-73},
  ee        = {http://doi.acm.org/10.1145/1378704.1378720},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}