@article{IVM_1971_7_a15,
     author = {L. D. \`Eskin},
     title = {The asymptotic behavior of the solutions of the system $Y''-Q(x)Y'-P(x)Y=0${.~I}},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {122--136},
     year = {1971},
     number = {7},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1971_7_a15/}
}