Advances in Information Systems Development, New Methods and Practice for the Networked Society, Vol. 1, Proceedings of the 15 ťh International Conference, Budapest, Hungary, August 31 - September 2, 2006 - Magyar, Gabor; Knapp, Gabor; Wojtkowski, Wita; Wojtkowski , W. Gregory; Zupančič, Jože (Springer Science+Business Media, Inc., 2007)