@misc{31951,
  author       = {{Häsel-Weide, Uta and Nührenbörger, M. and Reinold, M.}},
  isbn         = {{978-3122009939}},
  pages        = {{80}},
  publisher    = {{Klett}},
  title        = {{{Das Zahlenbuch 3. Förderheft.}}},
  year         = {{2018}},
}