%0 Journal Article
%A A. M. Lukatskii
%T Curvature of groups of diffeomorphisms preserving the measure of the $2$-sphere
%J Funkcionalʹnyj analiz i ego priloženiâ
%D 1979
%P 23-27
%V 13
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/FAA_1979_13_3_a2/
%G ru
%F FAA_1979_13_3_a2