@article{IIMI_2006_1_a5,
     author = {N. I. Pletnikova},
     title = {Scattering problem for the {Schr\"odinger} equation with a step-like potential},
     journal = {Izvestiya Instituta Matematiki i Informatiki Udmurtskogo Gosudarstvennogo Universiteta},
     pages = {89--97},
     year = {2006},
     number = {1},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IIMI_2006_1_a5/}
}