@article{JRAM_1991__420_153356,
     author = {Claude LeBrun},
     title = {Scalar-flat {K\"ahler} metrics on blown-up ruled surfaces.},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {161--178},
     publisher = {mathdoc},
     volume = {420},
     year = {1991},
     zbl = {0727.53067},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1991__420_153356/}
}