%0 Journal Article %A S. M. Natanzon %T Prymians of real curves and their applications to the effectivization of Schr\"odinger operators %J Funkcionalʹnyj analiz i ego priloženiâ %D 1989 %P 41-56 %V 23 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/FAA_1989_23_1_a3/ %G ru %F FAA_1989_23_1_a3