@article{SM_1968_6_4_a4,
     author = {V. M. Alekseev},
     title = {Quasirandom dynamical systems. {II.} {One-dimensional} nonlinear oscillations in a field with periodic perturbation},
     journal = {Sbornik. Mathematics},
     pages = {505--560},
     publisher = {mathdoc},
     volume = {6},
     number = {4},
     year = {1968},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1968_6_4_a4/}
}