Thomas Böhme Victor Larios-Rosillo Helena Unger Herwig Unger Innovative Internet Community Systems, 4th InternationalWorkshop, IICS 2004, Guadalajara, Mexico, June 21-23, 2004, Revised Papers 3473 2006 3-540-28880-5 IICS Lecture Notes in Computer Science Springer db/conf/iics/iics2004.html