Meritxell Vinyals Andrea Giovannucci Jesús Cerquides Pedro Meseguer Juan A. Rodríguez-Aguilar A test suite for the evaluation of mixed multi-unit combinatorial auctions. 130-150 2008 63 J. Algorithms 1-3 http://dx.doi.org/10.1016/j.jalgor.2008.02.008 db/journals/jal/jal63.html#VinyalsGCMR08