@article {IOPORT.05749563,
    author       = {Cattuto, Ciro and Barrat, Alain and Baldassarri, Andrea and Schehr, G. and Loreto, Vittorio},
    title        = {Collective dynamics of social annotation.},
    year         = {2009},
    journal      = {Computing Research Repository (CoRR)},
    volume       = {2009},
    pages        = {Article No. 0902.2866},
    publisher    = {Association for Computing Machinery, New York, NY; Cornell University, Ithaka, NY},
    identifier   = {05749563},
}