@article{IIMI_2004_1_a3,
     author = {L. E. Morozova and Yu. P. Chuburin},
     title = {On levels of the one-dimensional discrete {Schr\"odinger} operator with a decreasing small potential},
     journal = {Izvestiya Instituta Matematiki i Informatiki Udmurtskogo Gosudarstvennogo Universiteta},
     pages = {85--94},
     year = {2004},
     number = {1},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IIMI_2004_1_a3/}
}