@article{DE_1965_1_3_a3,
     author = {E. A. Nazarov},
     title = {Methods for making trajectories tend to a limit cycle in case of a system of three differential equations with non-analytic right-hand sides},
     journal = {Differencialʹnye uravneni\^a},
     pages = {313--317},
     publisher = {mathdoc},
     volume = {1},
     number = {3},
     year = {1965},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1965_1_3_a3/}
}