Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{IM_1967__3_141879, author = {E. THOMAS}, title = {Fields of {Tangent} {k-Planes} on {Manifolds.}}, journal = {Inventiones mathematicae}, pages = {334--347}, publisher = {mathdoc}, volume = {3}, year = {1967}, zbl = {0162.55402}, url = {http://geodesic.mathdoc.fr/item/IM_1967__3_141879/} }
E. THOMAS. Fields of Tangent k-Planes on Manifolds.. Inventiones mathematicae, Tome 3 (1967), pp. 334-347. http://geodesic.mathdoc.fr/item/IM_1967__3_141879/