Development of An Algorithm for Groupware Modeling for A Collaborative E-learning 2006年1月1日 Ikuo Kitagaki, Atsushi Hikita, Futao Fuang, Keiko Yokoyama, Keizo Nagaoka, Makoto Takeya, Nobuyoshi Yonezawa, Takako Akakura, Maomi Ueno, Yasuhiro FujiharaPROCEEDINGS OF THE 1ST INTERNATIONAL CONFERENCE ON VIRTUAL LEARNING