@article{MET_1961__4_175106,
     author = {J. Pfanzagl},
     title = {Erg\"anzungen zu },
     journal = {Metrika},
     pages = {105--106},
     publisher = {mathdoc},
     volume = {4},
     year = {1961},
     zbl = {0166.14904},
     url = {http://geodesic.mathdoc.fr/item/MET_1961__4_175106/}
}