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@article{DE_1978_14_9_a4, author = {N. A. Izobov}, title = {Lower bound for the minimal exponent of a linear system}, journal = {Differencialʹnye uravneni\^a}, pages = {1576--1588}, publisher = {mathdoc}, volume = {14}, number = {9}, year = {1978}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1978_14_9_a4/} }
N. A. Izobov. Lower bound for the minimal exponent of a linear system. Differencialʹnye uravneniâ, Tome 14 (1978) no. 9, pp. 1576-1588. http://geodesic.mathdoc.fr/item/DE_1978_14_9_a4/