@article{MAN_1970__190_162097,
     author = {B. Volkmann},
     title = {\"Uber extreme {Anormalit\"at} bei {Ziffernentwicklungen.}},
     journal = {Mathematische Annalen},
     pages = {149--153},
     publisher = {mathdoc},
     volume = {190},
     year = {1970},
     zbl = {0198.06503},
     url = {http://geodesic.mathdoc.fr/item/MAN_1970__190_162097/}
}