TY - JOUR AU - V. P. Glushko TI - Degenerate linear differential equations. I JO - Differencialʹnye uravneniâ PY - 1968 SP - 1584 EP - 1597 VL - 4 IS - 9 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1968_4_9_a3/ LA - ru ID - DE_1968_4_9_a3 ER -