%0 Journal Article %A S. A. Stepin %T Splitting problem for WKB asymptotics in a~nonresonant case and the reduction method for linear systems %J Informatics and Automation %D 2017 %P 292-312 %V 297 %I mathdoc %U http://geodesic.mathdoc.fr/item/TRSPY_2017_297_a15/ %G ru %F TRSPY_2017_297_a15