TY - JOUR AU - I. Èl'shner TI - A difference method for degenerate ordinary differential equations JO - Differencialʹnye uravneniâ PY - 1979 SP - 828 EP - 839 VL - 15 IS - 5 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1979_15_5_a6/ LA - ru ID - DE_1979_15_5_a6 ER -