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@article{DAN_1990_311_2_a1, author = {Ya. S. Baris and O. B. Lukova}, title = {Integral manifolds and the reduction principle in stability}, journal = {Doklady Akademii Nauk}, pages = {270--273}, publisher = {mathdoc}, volume = {311}, number = {2}, year = {1990}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1990_311_2_a1/} }
Ya. S. Baris; O. B. Lukova. Integral manifolds and the reduction principle in stability. Doklady Akademii Nauk, Tome 311 (1990) no. 2, pp. 270-273. http://geodesic.mathdoc.fr/item/DAN_1990_311_2_a1/