TY - JOUR AU - V. A. Dem'yanenko TI - Obvious description of isogeny of elliptic cur JO - Trudy Instituta matematiki i mehaniki PY - 1992 SP - 13 EP - 19 VL - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TIMM_1992_1_a1/ LA - ru ID - TIMM_1992_1_a1 ER -