%0 Journal Article %A A. Ya. Gordon %T On exceptional values of the boundary phase for the Schr\"odinger equation on a~half-line %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 1992 %P 260-261 %V 47 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/RM_1992_47_1_a7/ %G en %F RM_1992_47_1_a7