I. Hsiao, S. Sosnovsky, и P. Brusilovsky. Learning in the Synergy of Multiple Disciplines, Proceedings of the EC-TEL 2009, том 5794 из Lecture Notes in Computer Science, Berlin/Heidelberg, Springer, (октября 2009)
J. Gil, и I. Maman. OOPSLA '05: Proceedings of the 20th annual ACM SIGPLAN conference on Object oriented programming, systems, languages, and applications, стр. 97--116. San Diego, CA, USA, ACM, (2005)