%0 Journal Article %A N. S. Bojinov %T Necessary and sufficient condition for the reconstruction of functions from their coefficients in the root expansion of a nonlocal Sturm--Liouville operator %J Doklady Akademii Nauk %D 1991 %P 777-780 %V 319 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1991_319_4_a0/ %G ru %F DAN_1991_319_4_a0