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@article{DE_1995_31_8_a12, author = {K. E. Shiryaev}, title = {On the {Baire} class of exponents of linear systems}, journal = {Differencialʹnye uravneni\^a}, pages = {1381--1384}, publisher = {mathdoc}, volume = {31}, number = {8}, year = {1995}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1995_31_8_a12/} }
K. E. Shiryaev. On the Baire class of exponents of linear systems. Differencialʹnye uravneniâ, Tome 31 (1995) no. 8, pp. 1381-1384. http://geodesic.mathdoc.fr/item/DE_1995_31_8_a12/