Bruno Codenotti Luis Rademacher Kasturi R. Varadarajan Computing Equilibrium Prices in Exchange Economies with Tax Distortions. 584-595 2006 conf/icalp/2006-1 ICALP (1) http://dx.doi.org/10.1007/11786986_51 db/conf/icalp/icalp2006-1.html#CodenottiRV06