@article{ELMA_1962__17_140757,
     author = {H. Jecklin},
     title = {\"Uber gewogene {Mittelwerte,} insbesondere gewogene geometrische {Mittel.}},
     journal = {Elemente der Mathematik},
     pages = {128--133},
     publisher = {mathdoc},
     volume = {17},
     year = {1962},
     zbl = {0105.04202},
     url = {http://geodesic.mathdoc.fr/item/ELMA_1962__17_140757/}
}