@article{DE_1973_9_6_a21,
     author = {L. S. Tchebykin},
     title = {The stability of a certain nonlinear third order system},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1151--1153},
     publisher = {mathdoc},
     volume = {9},
     number = {6},
     year = {1973},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1973_9_6_a21/}
}