TY - JOUR AU - I. B. Gotovtsev TI - Geometric aspects of the method of differential relations JO - Differencialʹnye uravneniâ PY - 1983 SP - 1915 EP - 1922 VL - 19 IS - 11 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1983_19_11_a12/ LA - ru ID - DE_1983_19_11_a12 ER -