@incollection{Beckmann2008,
  author    = {Johann Beckmann},
  title     = {Beytr{\"a}ge zur Geschichte der Erfindungen : 4. Findelh{\"a}user ; 5. Waisenh{\"a}user},
  booktitle = {Beytr{\"a}ge zur Geschichte der Erfindungen},
  volume    = {Bd. 5},
  number    = {St{\"u}ck 3},
  year      = {2008},
}