Bala Kalyanasundaram Mahendran Velauthapillai John G. Waclawsky Unlocking the Advantages of Dynamic Service Selection and Pricing. 393-410 2005 38 Theory Comput. Syst. 4 http://dx.doi.org/10.1007/s00224-004-1179-x db/journals/mst/mst38.html#KalyanasundaramVW05