%0 Journal Article %A A. A. Kirillov %T K\"ahler structures on $K$-orbits of the group of diffeomorphisms of a circle %J Funkcionalʹnyj analiz i ego priloženiâ %D 1987 %P 42-45 %V 21 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/FAA_1987_21_2_a3/ %G ru %F FAA_1987_21_2_a3