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@article{DE_1979_15_12_a15, author = {A. V. Gulin}, title = {Stability of difference schemes and operator inequalities}, journal = {Differencialʹnye uravneni\^a}, pages = {2238--2250}, publisher = {mathdoc}, volume = {15}, number = {12}, year = {1979}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1979_15_12_a15/} }
A. V. Gulin. Stability of difference schemes and operator inequalities. Differencialʹnye uravneniâ, Tome 15 (1979) no. 12, pp. 2238-2250. http://geodesic.mathdoc.fr/item/DE_1979_15_12_a15/