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citeseerx.ist.psu.edu
Ledyard, John O.; Olson, Mark; Porter, David; Swanson, Joseph A.; Torma, David P. (2002). "The First Use of a Combined-Value Auction for Transportation Services". Interfaces. 32 (5): 4–12. CiteSeerX10.1.1.26.5393. doi:10.1287/inte.32.5.4.30. JSTOR25062843.