@article{MZ_1975__143_172230,
     author = {Hans Freudenthal and Karl Strambach},
     title = {Schlie{\ss}ungss\"atze und {Projektivit\"aten} in der {M\"obius-} und {Laguerregeometrie.}},
     journal = {Mathematische Zeitschrift},
     pages = {213--234},
     publisher = {mathdoc},
     volume = {143},
     year = {1975},
     zbl = {0313.50017},
     url = {http://geodesic.mathdoc.fr/item/MZ_1975__143_172230/}
}