%0 Book Section %B Agent Mediated Electronic Commerce IV: Designing Mechanisms and Systems (LNAI 2531) %D 2002 %T Price-Based Information Certificates for Minimal-Revelation Combinatorial Auctions %A David C. Parkes %E J. Padget %E D. Parkes %E Sadeh, N. %E O.Shehory %E W.Walsh %B Agent Mediated Electronic Commerce IV: Designing Mechanisms and Systems (LNAI 2531) %I Springer-Verlag %P 103–122 %G eng %U http://econcs.seas.harvard.edu/files/econcs/files/certificates.pdf