TY - JOUR AU - A. N. Todorov TI - Epimorphic period mapping for $K3$-surfaces that can be represented as double planes JO - Matematičeskie zametki PY - 1979 SP - 465 EP - 474 VL - 26 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZM_1979_26_3_a14/ LA - ru ID - MZM_1979_26_3_a14 ER -