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Translated from Matematicheskie Zametki, Vol. 45, No. 1, pp. 106–114, January, 1989.
The author thanks S. Yu. Dobrokhotov for useful discussions and constant attention to the paper.
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Shafarevich, A.I. Quasiclassical scattering of wave packets on a narrow band in which the potential rapidly changes. Mathematical Notes of the Academy of Sciences of the USSR 45, 72–77 (1989). https://doi.org/10.1007/BF01158720
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DOI: https://doi.org/10.1007/BF01158720