A Report on the PEAK Experiment: Context and Design. - Maria Bonn; Wendy Lougee; Jeffrey K. MacKie-Mason; Juan F. Riveros (D Lib Mag., 1999)

A Report on the PEAK Experiment: Usage and Economic Behavior. - Jeffrey K. MacKie-Mason; Juan F. Riveros; Maria Bonn; Wendy Lougee (D Lib Mag., 1999)