Voir la notice de l'article provenant de la source Math-Net.Ru
@article{IVM_1993_9_a2, author = {E. V. Voskresenskii}, title = {Estimates for solutions of perturbed first-order differential equations}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {13--17}, publisher = {mathdoc}, number = {9}, year = {1993}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_1993_9_a2/} }
E. V. Voskresenskii. Estimates for solutions of perturbed first-order differential equations. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 9 (1993), pp. 13-17. http://geodesic.mathdoc.fr/item/IVM_1993_9_a2/