%0 Journal Article %A A. V. Aminova %T Integration of a~first-order covariant differential equation and of geodesic mappings of Riemannian spaces of arbitrary signature and dimension %J Izvestiâ vysših učebnyh zavedenij. Matematika %D 1988 %P 3-13 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/IVM_1988_1_a0/ %G ru %F IVM_1988_1_a0