@article{MAN_1989__285_1_164606,
     author = {I.-Hsun Tsai},
     title = {Negatively curved metrics on {Kaira} surfaces.},
     journal = {Mathematische Annalen},
     pages = {369--380},
     publisher = {mathdoc},
     volume = {285},
     number = {1},
     year = {1989},
     zbl = {0664.53033},
     url = {http://geodesic.mathdoc.fr/item/MAN_1989__285_1_164606/}
}