%0 Journal Article
%A E. THOMAS
%T Fields of Tangent k-Planes on Manifolds.
%J Inventiones mathematicae
%D 1967
%P 334-347
%V 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/IM_1967__3_141879/
%F IM_1967__3_141879