@article{DE_1969_5_11_a6,
     author = {P. S. Belevets and A. I. Yablonskii},
     title = {The behavior of the trajectories of a certain dynamical system},
     journal = {Differencialʹnye uravneni\^a},
     pages = {2017--2025},
     publisher = {mathdoc},
     volume = {5},
     number = {11},
     year = {1969},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1969_5_11_a6/}
}