%0 Journal Article %A R. G. Novikov %T Approximate Inverse Quantum Scattering at Fixed Energy in Dimension~2 %J Informatics and Automation %D 1999 %P 301-318 %V 225 %I mathdoc %U http://geodesic.mathdoc.fr/item/TRSPY_1999_225_a19/ %G ru %F TRSPY_1999_225_a19