%0 Journal Article %A V. I. Vasyunin %T Unconditionally convergent spectral decompositions and interpolation problems %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 1978 %P 5-49 %V 130 %I mathdoc %U http://geodesic.mathdoc.fr/item/TM_1978_130_a1/ %G ru %F TM_1978_130_a1