@article{MAN_1982__259_163633,
     author = {Ulf Persson},
     title = {Horikawa {Surfaces} with {Maximal} {Picard} {Numbers.}},
     journal = {Mathematische Annalen},
     pages = {287--312},
     publisher = {mathdoc},
     volume = {259},
     year = {1982},
     zbl = {0466.14010},
     url = {http://geodesic.mathdoc.fr/item/MAN_1982__259_163633/}
}