%0 Journal Article %A David Mumford %T The topology of normal singularities of an algebraic surface and a criterion for simplicity %J Publications Mathématiques de l'IHÉS %D 1961 %P 5-22 %V 9 %I Institut des Hautes Études Scientifiques %U https://pmihes.centre-mersenne.org/articles/10.1007/BF02698717/ %R 10.1007/BF02698717 %G en %F PMIHES_1961__9__5_0