Jon Feldman S. Muthukrishnan Evdokia Nikolova Martin Pál A Truthful Mechanism for Offline Ad Slot Scheduling. 182-193 2008 SAGT http://dx.doi.org/10.1007/978-3-540-79309-0_17 conf/sagt/2008 db/conf/sagt/sagt2008.html#FeldmanMNP08