@article{DE_1974_10_9_a0,
     author = {V. M. Matrosov},
     title = {The comparison method in the dynamics of {systems.~I,} {II}},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1547--1559},
     publisher = {mathdoc},
     volume = {10},
     number = {9},
     year = {1974},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1974_10_9_a0/}
}