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@article{DE_1998_34_8_a0, author = {A. Yu. Aleksandrov}, title = {Investigation of recurrent oscillations of dynamical systems}, journal = {Differencialʹnye uravneni\^a}, pages = {1011--1017}, publisher = {mathdoc}, volume = {34}, number = {8}, year = {1998}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1998_34_8_a0/} }
A. Yu. Aleksandrov. Investigation of recurrent oscillations of dynamical systems. Differencialʹnye uravneniâ, Tome 34 (1998) no. 8, pp. 1011-1017. http://geodesic.mathdoc.fr/item/DE_1998_34_8_a0/