@article{IM_1992__110_2_144064,
     author = {Zhenbo Qin},
     title = {Moduli spaces of stable rank-2 bundles on ruled surfaces.},
     journal = {Inventiones mathematicae},
     pages = {615--626},
     publisher = {mathdoc},
     volume = {110},
     number = {2},
     year = {1992},
     zbl = {0808.14010},
     url = {http://geodesic.mathdoc.fr/item/IM_1992__110_2_144064/}
}