@article{DE_1986_22_1_a9,
     author = {N. M. Mahmedzhanov and V. V. Tikhomirov},
     title = {The behavior of eigen- and associated functions of the {Schr\"odinger} operator at the point of discontinuity of the potential},
     journal = {Differencialʹnye uravneni\^a},
     pages = {74--82},
     publisher = {mathdoc},
     volume = {22},
     number = {1},
     year = {1986},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1986_22_1_a9/}
}