%0 Journal Article %A N. I. Pletnikova %T On the one-dimensional Schrödinger equation with a perturbed non-local steplike potential %J Izvestiya Instituta Matematiki i Informatiki Udmurtskogo Gosudarstvennogo Universiteta %D 2004 %P 95-108 %N 1 %U http://geodesic.mathdoc.fr/item/IIMI_2004_1_a4/ %G ru %F IIMI_2004_1_a4