@article{ZNSL_2015_438_a14,
     author = {A. A. Fedotov and E. V. Tschetka},
     title = {Complex {WKB} method for difference equations in bounded domains},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {236--254},
     publisher = {mathdoc},
     volume = {438},
     year = {2015},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_2015_438_a14/}
}