TY - JOUR AU - P. B. Golokvoschyus TI - The integral matrix of a certain system of differential equations JO - Differencialʹnye uravneniâ PY - 1969 SP - 626 EP - 640 VL - 5 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1969_5_4_a2/ LA - ru ID - DE_1969_5_4_a2 ER -