TY - JOUR AU - È. I. Grudo TI - The development of the theory of ordinary differential equations in Belorussia JO - Differencialʹnye uravneniâ PY - 1978 SP - 2115 EP - 2122 VL - 14 IS - 12 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1978_14_12_a0/ LA - ru ID - DE_1978_14_12_a0 ER -