%0 Journal Article
%A M. Ya. Zhitomirskii
%T Normal forms of germs of two-dimensional distributions in $\mathbb{R}^4$
%J Funkcionalʹnyj analiz i ego priloženiâ
%D 1990
%P 81-82
%V 24
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/FAA_1990_24_2_a10/
%G ru
%F FAA_1990_24_2_a10