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@article{DE_1973_9_8_a19, author = {A. V. Lutsenko and L. V. Stadnikova}, title = {Partial stability in the first approximation}, journal = {Differencialʹnye uravneni\^a}, pages = {1530--1533}, publisher = {mathdoc}, volume = {9}, number = {8}, year = {1973}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1973_9_8_a19/} }
A. V. Lutsenko; L. V. Stadnikova. Partial stability in the first approximation. Differencialʹnye uravneniâ, Tome 9 (1973) no. 8, pp. 1530-1533. http://geodesic.mathdoc.fr/item/DE_1973_9_8_a19/