@article{MAN_1954__128_160403,
     author = {W. Nef},
     title = {Zerlegungs\"aquivalenz von {Mengen} und invarianter {Inhalt.}},
     journal = {Mathematische Annalen},
     pages = {204--227},
     publisher = {mathdoc},
     volume = {128},
     year = {1954},
     language = {de},
     url = {http://geodesic.mathdoc.fr/item/MAN_1954__128_160403/}
}