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@article{DE_1974_10_5_a2, author = {A. P. Ivanov and N. E. Kirin}, title = {On methods of observing linear perturbable systems}, journal = {Differencialʹnye uravneni\^a}, pages = {788--791}, publisher = {mathdoc}, volume = {10}, number = {5}, year = {1974}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1974_10_5_a2/} }
A. P. Ivanov; N. E. Kirin. On methods of observing linear perturbable systems. Differencialʹnye uravneniâ, Tome 10 (1974) no. 5, pp. 788-791. http://geodesic.mathdoc.fr/item/DE_1974_10_5_a2/