Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DE_1983_19_10_a24, author = {Yu. M. Rappoport}, title = {A modification of the approximation method}, journal = {Differencialʹnye uravneni\^a}, pages = {1809--1813}, publisher = {mathdoc}, volume = {19}, number = {10}, year = {1983}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1983_19_10_a24/} }
Yu. M. Rappoport. A modification of the approximation method. Differencialʹnye uravneniâ, Tome 19 (1983) no. 10, pp. 1809-1813. http://geodesic.mathdoc.fr/item/DE_1983_19_10_a24/