Research and Development in Intelligent Systems XXVIII : Incorporating Applications and Innovations in Intelligent Systems XIX Proceedings of AI-2011, the Thirty-first SGAI International Conference on Innovative Techniques and Applications of Artificial Intelligence / edited by Max Bramer, Miltos Petridis, Lars Nolle., 2011 r=on-line (Введено оглавление). - Текст : электронный.