@article{TM_2017_297_a15,
     author = {S. A. Stepin},
     title = {Splitting problem for {WKB} asymptotics in a~nonresonant case and the reduction method for linear systems},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {292--312},
     publisher = {mathdoc},
     volume = {297},
     year = {2017},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TM_2017_297_a15/}
}