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@article{DAN_1967_173_2_a17, author = {M. R. Aliev and V. T. Aleksanyan}, title = {Choice of $S$-functions in the method of contact transformations}, journal = {Doklady Akademii Nauk}, pages = {302--305}, publisher = {mathdoc}, volume = {173}, number = {2}, year = {1967}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1967_173_2_a17/} }
M. R. Aliev; V. T. Aleksanyan. Choice of $S$-functions in the method of contact transformations. Doklady Akademii Nauk, Tome 173 (1967) no. 2, pp. 302-305. http://geodesic.mathdoc.fr/item/DAN_1967_173_2_a17/