Carlos Castro-Herrera Chuan Duan Jane Cleland-Huang Bamshad Mobasher A recommender system for requirements elicitation in large-scale software projects. 1419-1426 2009 SAC http://doi.acm.org/10.1145/1529282.1529601 conf/sac/2009 db/conf/sac/sac2009.html#Castro-HerreraDCM09