Talk:Preferential bidding system

I added two Transportation Science articles as references. For readers unfamiliar with the subject, these references may be a bit too technical, however they are valuable sources. --134.95.184.121 (talk) 12:09, 17 July 2008 (UTC)

Interactive PBS
Reformulate for WP:POV 207.134.142.6 (talk) 17:21, 27 July 2011 (UTC)

Clarified Constraints Garret.healy (talk) 17:32, 27 December 2012 (UTC) Added Assigned Lines Garret.healy (talk) 17:32, 27 December 2012 (UTC)