T. Pederson, C. Ardito, P. Bottoni, и M. Costabile. Advances in Conceptual Modeling -- Challenges and Opportunities: ER 2008 Workshops CMLSA, ECDM, FP-UML, M2AS, RIGiM, SeCoGIS, WISM, Barcelona, Spain, том 5232 из Lecture Notes in Computer Science, (2008)
G. Di Fabbrizio, J. Wilpon, и T. Okken. Proceedings of the 11th International Conference on Multimodal Interfaces and the 6th Workshop on Machine Learning for Multimodal Interfaces (ICMI-MLMI '09), Cambridge, MA, USA, стр. 71-78. (2009)