TY - JOUR AU - V. P. Didenko TI - On some systems of differential equations of mixed and mixed-compound types JO - Differencialʹnye uravneniâ PY - 1966 SP - 33 EP - 46 VL - 2 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1966_2_1_a2/ LA - ru ID - DE_1966_2_1_a2 ER -