@article{MAN_1991__291_1_164892,
     author = {Klaus Langmann},
     title = {Picardindex und ganzalgebraische {Punkte.}},
     journal = {Mathematische Annalen},
     pages = {663--690},
     year = {1991},
     volume = {291},
     number = {1},
     zbl = {0724.14012},
     url = {http://geodesic.mathdoc.fr/item/MAN_1991__291_1_164892/}
}