Susan Finger Dana Gelman Anne Fay Michael Szczerban Asim Smailagic Daniel P. Siewiorek Supporting collaborative learning in engineering design. 734-741 2006 31 Expert Syst. Appl. 4 http://dx.doi.org/10.1016/j.eswa.2006.01.012 db/journals/eswa/eswa31.html#FingerGFSSS06