@article{MZ_1974__140_172141,
     author = {Gerd Blind},
     title = {\"Uberdeckung der {Ebene} durch inkongruente {Kreise.}},
     journal = {Mathematische Zeitschrift},
     pages = {179--194},
     publisher = {mathdoc},
     volume = {140},
     year = {1974},
     zbl = {0289.52005},
     url = {http://geodesic.mathdoc.fr/item/MZ_1974__140_172141/}
}