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@article{IVM_1958_2_a1, author = {M. I. Al'mukhamedov}, title = {The sets of periodic motions determined by a~system of differential equations}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {5--16}, publisher = {mathdoc}, number = {2}, year = {1958}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_1958_2_a1/} }
M. I. Al'mukhamedov. The sets of periodic motions determined by a~system of differential equations. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 2 (1958), pp. 5-16. http://geodesic.mathdoc.fr/item/IVM_1958_2_a1/