C. Pavlovski, и J. Zou. Proceedings of the fifth Asia-Pacific conference on Conceptual Modelling - Volume 79, стр. 103--112. Darlinghurst, Australia, Australia, Australian Computer Society, Inc., (2008)
E. Mugellini, E. Rubegni, и O. Khaled. Human-Computer Interaction. Interaction Platforms and Techniques, 12th International Conference, HCI International 2007, Beijing, China, July 22-27, 2007, Proceedings, Part II, том 4551 из Lecture Notes in Computer Science, стр. 873--882. Springer, (2007)
C. Godart, F. Charoy, и J. Derniame. Proceeding of the Third International Workshop on Computer Aided Softare Engineering. CASE'89, London, (июля 1989)
C. Godart, F. Charoy, и J. Derniame. Proceedings of International Conference on Computing and Information'89, Toronto, Ontario, CANADA, Canadian Scholar Press, (мая 1989)