@article{DE_1972_8_11_a25,
     author = {V. N. Monakov},
     title = {An analogue of {Perron's} theorem for strongly nonlinear systems of differential equations},
     journal = {Differencialʹnye uravneni\^a},
     pages = {2096--2097},
     publisher = {mathdoc},
     volume = {8},
     number = {11},
     year = {1972},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1972_8_11_a25/}
}