Y. Sure, S. Bloehdorn, P. Haase, J. Hartmann, und D. Oberle. Proceedings of the 12th Portuguese Conference on Artificial Intelligence - Progress in Artificial Intelligence (EPIA 2005), Volume 3803 von LNCS, Seite 218 - 231. Covilha, Portugal, Springer, (Dezember 2005)
Y. Sure, S. Bloehdorn, P. Haase, J. Hartmann, und D. Oberle. Proceedings of the 12th Portuguese Conference on Artificial Intelligence - Progress in Artificial Intelligence (EPIA 2005), Volume 3803 von LNCS, Seite 218 - 231. Covilha, Portugal, Springer, (Dezember 2005)