TY - JOUR AU - Mumford, David TI - The topology of normal singularities of an algebraic surface and a criterion for simplicity JO - Publications Mathématiques de l'IHÉS PY - 1961 SP - 5 EP - 22 VL - 9 PB - Institut des Hautes Études Scientifiques UR - http://archive.numdam.org/item/PMIHES_1961__9__5_0/ LA - en ID - PMIHES_1961__9__5_0 ER -