@article{MZ_1949__51_169096,
     author = {D. A., KAPPOS},
     title = {Ein {Beitrag} zur {Carath\'eodoryschen} {Definition} der {Ortsfunktionen} in {Booleschen} {Algebren}},
     journal = {Mathematische Zeitschrift},
     pages = {616--634},
     publisher = {mathdoc},
     volume = {51},
     year = {1949},
     zbl = {0032.19601},
     url = {http://geodesic.mathdoc.fr/item/MZ_1949__51_169096/}
}