@article{MAN_1984__266_163847,
     author = {Eric J. Brosius},
     title = {Rank-2 {Vector} {Bundles} on a {Ruled} {Surface} {II.}},
     journal = {Mathematische Annalen},
     pages = {199--214},
     publisher = {mathdoc},
     volume = {266},
     year = {1984},
     zbl = {0509.14016},
     url = {http://geodesic.mathdoc.fr/item/MAN_1984__266_163847/}
}