@article{Salganik2011,
author = {Salganik, M.J. and Mello, M.B. and Abdo, A.H. and Bertoni, N. and Fazito, D. and Bastos, F.I.},
title= {The game of contacts: Estimating the social visibility of groups},
year = {2011},
doi = {10.1016/j.socnet.2010.10.006},
volume = {33},
number = {1},
pages = {70--78},
}