TY  - JOUR
AU  - E. THOMAS
TI  - Fields of Tangent k-Planes on Manifolds.
JO  - Inventiones mathematicae
PY  - 1967
SP  - 334
EP  - 347
VL  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/IM_1967__3_141879/
ID  - IM_1967__3_141879
ER  -