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@article{DE_1969_5_7_a3, author = {N. A. Izobov}, title = {The highest exponent of a linear system with exponential perturbations}, journal = {Differencialʹnye uravneni\^a}, pages = {1186--1192}, publisher = {mathdoc}, volume = {5}, number = {7}, year = {1969}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1969_5_7_a3/} }
N. A. Izobov. The highest exponent of a linear system with exponential perturbations. Differencialʹnye uravneniâ, Tome 5 (1969) no. 7, pp. 1186-1192. http://geodesic.mathdoc.fr/item/DE_1969_5_7_a3/