Agent-Mediated Electronic Commerce IV. Designing Mechanisms and Systems AAMAS 2002 Workshop on Agent Mediated Electronic Commerce, Bologna, Italy, July 16, 2002, Revised Papers - Padget, Julian; Padget, Julian; Shehory, Onn; Shehory, Onn; Parkes, David; Parkes, David; Sadeh, Norman; Sadeh, Norman; Walsh, William E.; Walsh, William E. (Springer Berlin Heidelberg : Imprint: Springer, 2002)