%0 Journal Article %A B. E. Veits %T Some applications of the general theory of bi-orthogonal systems to the study of symmetrizable operators %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 1962 %V 17 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/RM_1962_17_6_a3/ %G ru %F RM_1962_17_6_a3