%0 Journal Article %A V. L. Popov %T On the Closedness of Some Orbits of Algebraic Groups %J Funkcionalʹnyj analiz i ego priloženiâ %D 1997 %P 76-79 %V 31 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/FAA_1997_31_4_a9/ %G ru %F FAA_1997_31_4_a9