@article{AFM_2000_25_2_a9,
     author = {Reiner K\"uhnau},
     title = {Drei {Funktionale} eines {Quasikreises}},
     journal = {Annales Fennici Mathematici},
     pages = {413--415},
     publisher = {mathdoc},
     volume = {25},
     number = {2},
     year = {2000},
     language = {de},
     url = {http://geodesic.mathdoc.fr/item/AFM_2000_25_2_a9/}
}