J. Llinas, C. Bowman, G. Rogova, A. Steinberg, и F. White. In P. Svensson and J. Schubert (Eds.), Proceedings of the Seventh International Conference on Information Fusion (FUSION 2004, стр. 1218--1230. (2004)
J. Paakki, A. Karhinen, J. Gustafsson, L. Nenonen, и A. Verkamo. Proceedings of the International Conference on Software: Theory and Practice (16th IFIP World Computer Congress), стр. 325--332. Beijing, China, (2000)