@article{MAN_1993__295_1_165052,
     author = {A.T. Huckleberry and J. Winkelmann},
     title = {Subvarieties of parallelizable manifolds.},
     journal = {Mathematische Annalen},
     pages = {469--484},
     year = {1993},
     volume = {295},
     number = {1},
     zbl = {0824.32011},
     url = {http://geodesic.mathdoc.fr/item/MAN_1993__295_1_165052/}
}