@article{DE_1969_5_12_a1,
     author = {V. M. Matrosov},
     title = {The comparison principle with a vector-valued {Ljapunov} {function.~IV}},
     journal = {Differencialʹnye uravneni\^a},
     pages = {2129--2143},
     publisher = {mathdoc},
     volume = {5},
     number = {12},
     year = {1969},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1969_5_12_a1/}
}