@article{MET_1973__20_175601,
     author = {F. Ferschl},
     title = {Families of {Frequency} {Distribution}  - {Ord,} {J.K.}},
     journal = {Metrika},
     pages = {189--189},
     publisher = {mathdoc},
     volume = {20},
     year = {1973},
     url = {http://geodesic.mathdoc.fr/item/MET_1973__20_175601/}
}