Masanori Sugimoto Fusako Kusunoki Shigenori Inagaki Kuniyoshi Takatoki Atsushi Yoshikawa A system for supporting collaborative learning with networked sensing boards. 39-50 2004 35 Systems and Computers in Japan 9 http://dx.doi.org/10.1002/scj.10502 db/journals/scjapan/scjapan35.html#SugimotoKITY04