@article{DE_1975_11_7_a10,
     author = {B. A. Shcherbakov},
     title = {The comparability of the motions of dynamical systems with regard to the nature of their recurrence},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1246--1255},
     publisher = {mathdoc},
     volume = {11},
     number = {7},
     year = {1975},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1975_11_7_a10/}
}