@article{DE_1981_17_9_a4,
     author = {P. B. Golokvoschyus},
     title = {Behavior of the norm of the integral matrix of some linear two-dimensional systems of differential equations in the neighborhood of a singular point of the syst},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1581--1588},
     publisher = {mathdoc},
     volume = {17},
     number = {9},
     year = {1981},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1981_17_9_a4/}
}