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@article{DE_1965_1_5_a6, author = {M. V. Fedoryuk}, title = {The one-dimensional scattering problem in the quasi-classical approximation. {I}}, journal = {Differencialʹnye uravneni\^a}, pages = {631--646}, publisher = {mathdoc}, volume = {1}, number = {5}, year = {1965}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1965_1_5_a6/} }
M. V. Fedoryuk. The one-dimensional scattering problem in the quasi-classical approximation. I. Differencialʹnye uravneniâ, Tome 1 (1965) no. 5, pp. 631-646. http://geodesic.mathdoc.fr/item/DE_1965_1_5_a6/