%0 Journal Article %A N. I. Pletnikova %T Scattering problem for the Schrödinger equation with a step-like potential %J Izvestiya Instituta Matematiki i Informatiki Udmurtskogo Gosudarstvennogo Universiteta %D 2006 %P 89-97 %N 1 %U http://geodesic.mathdoc.fr/item/IIMI_2006_1_a5/ %G ru %F IIMI_2006_1_a5