@article{MOMA_1975__80_177730,
     author = {A. Pendl},
     title = {Zur {M\"obiusgeometrie} der {Ber\"uhrkreisscharen.}},
     journal = {Monatshefte f\"ur Mathematik},
     pages = {307--318},
     publisher = {mathdoc},
     volume = {80},
     year = {1975},
     zbl = {0317.53008},
     url = {http://geodesic.mathdoc.fr/item/MOMA_1975__80_177730/}
}