@article{TMF_1997_112_3_a7, author = {A. L. Mironov and V. L. Oleinik}, title = {Limits of applicability of the tight binding approximation for complex-valued potential function}, journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika}, pages = {448--466}, publisher = {mathdoc}, volume = {112}, number = {3}, year = {1997}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/TMF_1997_112_3_a7/} }