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@article{DE_1985_21_11_a5, author = {G. S. Krechetov}, title = {Stability of a system of the first class with zero first diagonal coefficient}, journal = {Differencialʹnye uravneni\^a}, pages = {1891--1898}, publisher = {mathdoc}, volume = {21}, number = {11}, year = {1985}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1985_21_11_a5/} }
G. S. Krechetov. Stability of a system of the first class with zero first diagonal coefficient. Differencialʹnye uravneniâ, Tome 21 (1985) no. 11, pp. 1891-1898. http://geodesic.mathdoc.fr/item/DE_1985_21_11_a5/