%0 Journal Article
%A S. M. Natanzon
%T Differential equations on the Prym theta function. a realness criterion for two-dimensional, finite-zone, potential Schr\"odinger operators
%J Funkcionalʹnyj analiz i ego priloženiâ
%D 1992
%P 17-26
%V 26
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/FAA_1992_26_1_a2/
%G ru
%F FAA_1992_26_1_a2