@article{DE_1968_4_8_a1,
     author = {V. M. Matrosov},
     title = {The comparison principle with a vector-valued {Ljapunov} {function.~I}},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1374--1386},
     publisher = {mathdoc},
     volume = {4},
     number = {8},
     year = {1968},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1968_4_8_a1/}
}