Evaluating CSCL log files by social network analysis. - Kari Nurmela; Erno Lehtinen; Tuire Palonen (CSCL, 1999)

Developing Tools for Analyzing CSCL Process. - Kari Nurmela; Tuire Palonen; Erno Lehtinen; Kai Hakkarainen (CSCL, 2003)