@article{IVM_1981_2_a11,
     author = {L. D. \`Eskin},
     title = {Asymptotic behavior of the solutions of $ay''+(q(x)-\lambda)y=0$ as $\operatorname{Re}\lambda\to\infty$, and some of its applications},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {74--84},
     publisher = {mathdoc},
     number = {2},
     year = {1981},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1981_2_a11/}
}