@article{GDZPPN002227738, title = {Two-Plane Sub-Bundles of nonorientable real vector-bundles.}, journal = {Manuscripta mathematica}, volume = {55}, year = {1986}, pages = {263-280}, zbl = {0602.55009}, url = {http://dml.mathdoc.fr/item/GDZPPN002227738} }
Paula Leite Mello, Maria H. Two-Plane Sub-Bundles of nonorientable real vector-bundles.. Manuscripta mathematica, Tome 55 (1986) pp. 263-280. http://gdmltest.u-ga.fr/item/GDZPPN002227738/