Tsai, Jeffrey J.P. Zhang, Jia Huang, Jeff J.S. Yang, Stephen J.H. Supporting CSCW and CSCL with Intelligent Social Grouping Services Carnegie Mellon Silicon Valley Computer Engineering;Systems Architecture 2009-03-01
    https://kilthub.cmu.edu/articles/journal_contribution/Supporting_CSCW_and_CSCL_with_Intelligent_Social_Grouping_Services/6710852
10.1184/R1/6710852.v1