E. Nojavani, A. Rezaeezade, и Monadjemi. International Journal on Soft Computing, Artificial Intelligence and Applications (IJSCAI), 4 (1):
23 - 37(февраля 2015)
V. Stein, R. Neßelrath, J. Alexandersson, и J. Tröger. Proceedings of the 3nd International Conference on Computer Supported Education (CSEDU-11), стр. 462-467. Noordwijkerhout, Netherlands, (2011)
M. Banâtre, P. Couderc, J. Pauty, и M. Becus. Mobile Human-Computer Interaction – MobileHCI 2004, том 3160 из Lecture Notes in Computer Science, Springer, Berlin / Heidelberg, (2004)
S. Harper, C. Goble, и S. Pettitt. Proceedings of the 10th International Conference on Human-Computer Interaction, 4, стр. 399--403. London, UK, Lawrence Erlbaum Associates, (2003)