TY - JOUR AU - A. V. Aminova TI - Integration of a~first-order covariant differential equation and of geodesic mappings of Riemannian spaces of arbitrary signature and dimension JO - Izvestiâ vysših učebnyh zavedenij. Matematika PY - 1988 SP - 3 EP - 13 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IVM_1988_1_a0/ LA - ru ID - IVM_1988_1_a0 ER -