%0 Journal Article %A O. A. Plaksina %T Inverse problems of spectral analysis for the Sturm–Liouville operators with nonseparated boundary conditions %J Sbornik. Mathematics %D 1988 %P 1-23 %V 59 %N 1 %U http://geodesic.mathdoc.fr/item/SM_1988_59_1_a0/ %G en %F SM_1988_59_1_a0