@article{DE_1971_7_3_a19,
     author = {Kh. Yu. Kurdanov},
     title = {The stability of a system of differential equations of lagging type},
     journal = {Differencialʹnye uravneni\^a},
     pages = {543--544},
     publisher = {mathdoc},
     volume = {7},
     number = {3},
     year = {1971},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1971_7_3_a19/}
}