%0 Journal Article %A L. A. Chudov %T Determining a symmetric operator with defect indices $(1,1)$ by the spectra of two self-adjoint extensions %J Uchenye Zapiski Moskovskogo Gosudarstvennogo Universiteta %D 1959 %P 137-139 %V 186 %N 186 %I mathdoc %U http://geodesic.mathdoc.fr/item/UZMU_1959_186_186_a7/ %G ru %F UZMU_1959_186_186_a7