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@article{DAN_1968_180_2_a1, author = {M. M. Belova}, title = {Bounded solutions of systems of second order ordinary differential equations}, journal = {Doklady Akademii Nauk}, pages = {266--268}, publisher = {mathdoc}, volume = {180}, number = {2}, year = {1968}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1968_180_2_a1/} }
M. M. Belova. Bounded solutions of systems of second order ordinary differential equations. Doklady Akademii Nauk, Tome 180 (1968) no. 2, pp. 266-268. http://geodesic.mathdoc.fr/item/DAN_1968_180_2_a1/