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@article{DAN_1973_209_5_a11, author = {E. B. Gledzer}, title = {System of hydrodynamic type admitting two quadratic integrals of motion}, journal = {Doklady Akademii Nauk}, pages = {1046--1048}, publisher = {mathdoc}, volume = {209}, number = {5}, year = {1973}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1973_209_5_a11/} }
E. B. Gledzer. System of hydrodynamic type admitting two quadratic integrals of motion. Doklady Akademii Nauk, Tome 209 (1973) no. 5, pp. 1046-1048. http://geodesic.mathdoc.fr/item/DAN_1973_209_5_a11/