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@article{IVM_1958_4_a3, author = {N. G. Bulgakov}, title = {On the asymptotic integration of non-linear systems with many degrees of freedom}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {36--40}, publisher = {mathdoc}, number = {4}, year = {1958}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_1958_4_a3/} }
N. G. Bulgakov. On the asymptotic integration of non-linear systems with many degrees of freedom. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 4 (1958), pp. 36-40. http://geodesic.mathdoc.fr/item/IVM_1958_4_a3/