@article{DE_1981_17_8_a20,
     author = {D. D. Mirzov},
     title = {Oscillatory nature of the solutions of a differential system},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1504--1508},
     publisher = {mathdoc},
     volume = {17},
     number = {8},
     year = {1981},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1981_17_8_a20/}
}