@article{DE_1983_19_3_a2,
     author = {A. F. Kadomtseva},
     title = {Asymptotic behavior of the fundamental matrix of solutions of a linear system of differential equations in the presence of turning points},
     journal = {Differencialʹnye uravneni\^a},
     pages = {388--396},
     publisher = {mathdoc},
     volume = {19},
     number = {3},
     year = {1983},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1983_19_3_a2/}
}