@article{BAG_1990__30_138457,
     author = {B. Klotzek and H. Nimz},
     title = {Verschiedene {Diskretheitsbegriffe} in der \"aquiaffinen {Ebene}},
     journal = {Beitr\"age zur Algebra und Geometrie},
     pages = {69--78},
     publisher = {mathdoc},
     volume = {30},
     year = {1990},
     zbl = {0743.57025},
     url = {http://geodesic.mathdoc.fr/item/BAG_1990__30_138457/}
}