@article{MM2_1996__89_3_156158,
     author = {Lothar G\"ottsche},
     title = {Rationality of {Moduli} spaces of torsion free sheaves over rational surfaces.},
     journal = {Manuscripta mathematica},
     pages = {193--202},
     publisher = {mathdoc},
     volume = {89},
     number = {3},
     year = {1996},
     zbl = {0870.14003},
     url = {http://geodesic.mathdoc.fr/item/MM2_1996__89_3_156158/}
}