Enkh-Amgalan Baatarjav Santi Phithakkitnukoon Ram Dantu Group Recommendation System for Facebook. 211-219 2008 OTM Workshops http://dx.doi.org/10.1007/978-3-540-88875-8_41 conf/otm/2008-w db/conf/otm/otm2008-w.html#BaatarjavPD08