Y. Kali, и M. Ronen. Computer support for collaborative learning: The Next 10 Years! Proceedings of CSCL 2005 (Taipei, Taiwan), Mahwah, NJ, Lawrence Erlbaum Associates, (2005)
A. Dearden, J. Finlay, E. Allgar, и B. Mcmanus. People and Computers XVII: Memorable yet Invisible, Proceedings of HCI'2002, стр. 159-174. Springer Verlag, (2002)