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@article{DAN_1983_271_1_a8, author = {S. V. Meleshko}, title = {Differential constraints and one-parameter groups of {Lie--B\"acklund} transformations}, journal = {Doklady Akademii Nauk}, pages = {42--46}, publisher = {mathdoc}, volume = {271}, number = {1}, year = {1983}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1983_271_1_a8/} }
S. V. Meleshko. Differential constraints and one-parameter groups of Lie--B\"acklund transformations. Doklady Akademii Nauk, Tome 271 (1983) no. 1, pp. 42-46. http://geodesic.mathdoc.fr/item/DAN_1983_271_1_a8/