%0 Journal Article %A Feigenbaum, Joan %T Games, complexity classes, and approximation algorithms. %J Documenta mathematica %D 1998 %P 429-439 %V ICM Berlin 1998, Vol. III %I mathdoc %U http://geodesic.mathdoc.fr/item/DOCMA_1998__S9__a36/ %G en %F DOCMA_1998__S9__a36