An Empirical Examination of the Relation between Bids and Positions of Ads in Sponsored Search. - Tanja Stepanchuk (Bled eConference, 2008)

Optimization and analysis of the profitability of tariff structures with two-part tariffs. - Christian Schlereth; Tanja Stepanchuk; Bernd Skiera (Eur. J. Oper. Res., 2010)