TY - JOUR AU - I. A. Cheltsov TI - Singularities of 3-dimensional varieties admitting an ample effective divisor of Kodaira dimension zero JO - Matematičeskie zametki PY - 1996 SP - 618 EP - 626 VL - 59 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZM_1996_59_4_a12/ LA - ru ID - MZM_1996_59_4_a12 ER -