@article{DE_1975_11_3_a0,
     author = {V. M. Matrosov},
     title = {Die {Vergleichsmethode} in der {Dynamik} der {Systeme.~II}},
     journal = {Differencialʹnye uravneni\^a},
     pages = {403--417},
     publisher = {mathdoc},
     volume = {11},
     number = {3},
     year = {1975},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1975_11_3_a0/}
}