Soumyakanti Chakraborty Anup K. Sen Amitava Bagchi Designing Proxy Bidders for Online Combinatorial Auctions. 1-10 2009 HICSS http://dx.doi.org/10.1109/HICSS.2009.151 conf/hicss/2009 db/conf/hicss/hicss2009.html#ChakrabortySB09a