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@article{DE_1999_35_10_a11, author = {I. N. Sergeev}, title = {A lower bound for the minimal exponent of a three-dimensional system}, journal = {Differencialʹnye uravneni\^a}, pages = {1387--1397}, publisher = {mathdoc}, volume = {35}, number = {10}, year = {1999}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1999_35_10_a11/} }
I. N. Sergeev. A lower bound for the minimal exponent of a three-dimensional system. Differencialʹnye uravneniâ, Tome 35 (1999) no. 10, pp. 1387-1397. http://geodesic.mathdoc.fr/item/DE_1999_35_10_a11/