F. Paternò, C. Santoro, и L. Spano. Proceedings of the 12th IFIP TC 13 International Conference on Human-Computer Interaction: Part I, стр. 892--905. Berlin/Heidelberg, Springer-Verlag, (2009)
A. Neto, R. Fortes, и A. da Silva Filho. Proceedings of the 26th annual ACM international conference on Design of communication, стр. 277--278. New York, NY, USA, ACM, (2008)
E. Kaufmann, и A. Bernstein. Proceedings of the 6th International Semantic Web Conference and 2nd Asian Semantic Web Conference (ISWC/ASWC2007), Busan, South Korea, том 4825 из LNCS, стр. 281-294. Berlin, Heidelberg, Springer Verlag, (ноября 2007)
M. Palmér, и A. Naeve. Proceedings of the 13th International Conference on Conceptual Structures (ICCS 2005), том 3596 из Lecture Notes in Computer Science, стр. 136-151. Springer, (2005)