https://www.kellogg.northwestern.edu/serial/academics/bidding-registration/step-by-step.aspx
Kellogg Web-Based Course Bidding System | Kellogg School of Management | Northwestern University
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https://jergames.blogspot.com/2006/10/new-bidding-system-for-bridge.html
Yehuda: A New Bidding System for Bridge
A blog about board games, Israel, Judaism, technology, and life
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