@article{DE_1968_4_8_a16,
     author = {R. A. Sokolov},
     title = {The stability of the solutions of a certain class of systems of nonlinear differential equations},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1534--1535},
     publisher = {mathdoc},
     volume = {4},
     number = {8},
     year = {1968},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1968_4_8_a16/}
}