Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DE_1994_30_7_a7, author = {\`E. \`E. Shnol'}, title = {On the stability of fixed points of two-dimensional mappings}, journal = {Differencialʹnye uravneni\^a}, pages = {1156--1167}, publisher = {mathdoc}, volume = {30}, number = {7}, year = {1994}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1994_30_7_a7/} }
È. È. Shnol'. On the stability of fixed points of two-dimensional mappings. Differencialʹnye uravneniâ, Tome 30 (1994) no. 7, pp. 1156-1167. http://geodesic.mathdoc.fr/item/DE_1994_30_7_a7/