@article{MOMA_1968__72_177417,
     author = {L. Vietoris},
     title = {\"Uber eine {Z\"ahlfunktion} von {K.} {Nageswara} {Rao.}},
     journal = {Monatshefte f\"ur Mathematik},
     pages = {147--151},
     publisher = {mathdoc},
     volume = {72},
     year = {1968},
     language = {de},
     url = {http://geodesic.mathdoc.fr/item/MOMA_1968__72_177417/}
}