@article{ELMA_1967__22_140840,
     author = {L. Fejes T\'oth},
     title = {Eine {Kennzeichnung} des {Kreises.}},
     journal = {Elemente der Mathematik},
     pages = {25--27},
     publisher = {mathdoc},
     volume = {22},
     year = {1967},
     zbl = {0153.52002},
     url = {http://geodesic.mathdoc.fr/item/ELMA_1967__22_140840/}
}