TY - JOUR AU - T. K. Nurekenov TI - Solutions of countable systems of differential equations JO - Differencialʹnye uravneniâ PY - 1984 SP - 1640 EP - 1642 VL - 20 IS - 9 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1984_20_9_a27/ LA - ru ID - DE_1984_20_9_a27 ER -