L. Müller, V. Pelayo, C. Kunzmann, и A. Schmidt. Second International Workshop on Human Behavior Understanding (HBU 2011), том 7065 из Lecture Notes in Computer Science, стр. 93-103. Springer, (2011)
T. Ley, B. Kump, A. Ulbrich, P. Scheir, и S. Lindstaedt. Proceedings of Ed Media 2008 World Conference on Educational Multimedia, Hypermedia & Telecommunications, Vienna, Austria, June 30-July 4, AACE, Chesapeake, VA, (2008)
G. Carr, и A. Morrison. Communities of Practice: Creating Learning Environments for Educators, 1, глава 6, Information Age Publishing, Charlotte, NC, (2008)