Dalila Boughaci Belaid Benhamou Habiba Drias Stochastic Local Search for the Optimal Winner Determination Problem in Combinatorial Auctions. 593-597 2008 CP http://dx.doi.org/10.1007/978-3-540-85958-1_48 conf/cp/2008 db/conf/cp/cp2008.html#BoughaciBD08