@article{ZNSL_1989_170_a10,
     author = {V. A. Marchenko},
     title = {Spectral parameter asymptotics of the {Weil} solutions of {Sturm-Liouville} equations},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {184--206},
     year = {1989},
     volume = {170},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1989_170_a10/}
}