Jonathan Rabin Onn Shehory Theoretically Founded Optimization of Auctioneer's Revenues in Expanding Auctions. 62-75 2007 AMEC/TADA http://dx.doi.org/10.1007/978-3-540-88713-3_5 conf/atal/2007amec db/conf/atal/amec2007.html#RabinS07