@article{MOMA_1966__70_177355,
     author = {Helmut Groemer},
     title = {\"Uber die mittlere {Dichte} von {Massenverteilungen} im {Raum.}},
     journal = {Monatshefte f\"ur Mathematik},
     pages = {437--443},
     publisher = {mathdoc},
     volume = {70},
     year = {1966},
     zbl = {0173.24704},
     url = {http://geodesic.mathdoc.fr/item/MOMA_1966__70_177355/}
}