%0 Journal Article %A E. L. Nol'de %T Nonnegative eigenfunction of the Laplace--Beltrami operator on symmetric spaces with a~complex semisimple group of motions %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 1966 %V 21 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/RM_1966_21_5_a13/ %G ru %F RM_1966_21_5_a13