@article{BAG_1990__30_138455,
     author = {K. Wetwitschka},
     title = {Ein isoradiales {Problem} mit {Nebenbedingung} im triagonalen {Gitter}},
     journal = {Beitr\"age zur Algebra und Geometrie},
     pages = {35--60},
     publisher = {mathdoc},
     volume = {30},
     year = {1990},
     language = {de},
     url = {http://geodesic.mathdoc.fr/item/BAG_1990__30_138455/}
}