%0 Journal Article %A D. N. Akhiezer %T On~the concept of the rank of a~spherical homogeneous space %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 1988 %P 205-206 %V 43 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/RM_1988_43_5_a5/ %G en %F RM_1988_43_5_a5