Complex WKB method for the difference Schr\"odinger equation with the potential being a~trigonometric polynomial
Algebra i analiz, Tome 29 (2017) no. 2, pp. 193-219.

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A. A. Fedotov; E. V. Shchetka. Complex WKB method for the difference Schr\"odinger equation with the potential being a~trigonometric polynomial. Algebra i analiz, Tome 29 (2017) no. 2, pp. 193-219. http://geodesic.mathdoc.fr/item/AA_2017_29_2_a6/

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