@article{IM_1971__14_142109,
     author = {Nadine Moore},
     title = {Algebraic {Vector} {Bundles} over the {2-Sphere.}},
     journal = {Inventiones mathematicae},
     pages = {167--172},
     publisher = {mathdoc},
     volume = {14},
     year = {1971},
     zbl = {0224.14008},
     url = {http://geodesic.mathdoc.fr/item/IM_1971__14_142109/}
}