%0 Journal Article %A Freedman, Michael H. %T Topological views on computational complexity %J Documenta mathematica %D 1998 %P 453-464 %V ICM Berlin 1998, Vol. II %I mathdoc %U http://geodesic.mathdoc.fr/item/DOCMA_1998__S8__a38/ %G en %F DOCMA_1998__S8__a38