@article{ZVMMF_1984_24_6_a5,
     author = {M. V. Fedoryuk},
     title = {Asymptotics of solutions of ordinary differential equations with turning points},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {840--849},
     publisher = {mathdoc},
     volume = {24},
     number = {6},
     year = {1984},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_1984_24_6_a5/}
}