@article{DE_1983_19_2_a4,
     author = {M. L. Rasulov},
     title = {Asymptotic representation of the fundamental matrix of solutions of a system of ordinary differential equations with two parameters},
     journal = {Differencialʹnye uravneni\^a},
     pages = {229--253},
     publisher = {mathdoc},
     volume = {19},
     number = {2},
     year = {1983},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1983_19_2_a4/}
}