@article{ELMA_1948__3_140474,
     author = {Heinrich Jecklin},
     title = {\"Uber mathematische {Mittelwerte.}},
     journal = {Elemente der Mathematik},
     pages = {12--17},
     publisher = {mathdoc},
     volume = {3},
     year = {1948},
     url = {http://geodesic.mathdoc.fr/item/ELMA_1948__3_140474/}
}