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@article{DAN_1989_309_3_a1, author = {Yu. V. Gavrilenko}, title = {Principal solutions and automorphism groups of systems of}, journal = {Doklady Akademii Nauk}, pages = {524--528}, publisher = {mathdoc}, volume = {309}, number = {3}, year = {1989}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1989_309_3_a1/} }
Yu. V. Gavrilenko. Principal solutions and automorphism groups of systems of. Doklady Akademii Nauk, Tome 309 (1989) no. 3, pp. 524-528. http://geodesic.mathdoc.fr/item/DAN_1989_309_3_a1/