@incollection{Kirchner2018,
  author    = {Kirchner, Vera},
  title     = {Das "weiße Gold" in Preußen},
  series = {Geschichte und Geschehen 9/10 f{\"u}r das Land Berlin/Brandenburg},
  booktitle = {Geschichte und Geschehen 9/10 f{\"u}r das Land Berlin/Brandenburg},
  publisher = {Klett},
  address   = {Stuttgart},
  isbn      = {978-3-12443-635-1},
  pages     = {222 -- 223},
  year      = {2018},
  language  = {de}
}
@incollection{Kirchner2018,
  author    = {Kirchner, Vera},
  title     = {Anf{\"a}nge der Globalisierung},
  series = {Geschichte und Geschehen 9/10 f{\"u}r das Land Berlin/Brandenburg},
  booktitle = {Geschichte und Geschehen 9/10 f{\"u}r das Land Berlin/Brandenburg},
  publisher = {Klett},
  address   = {Stuttgart},
  isbn      = {978-3-12443-635-1},
  pages     = {224 -- 227},
  year      = {2018},
  language  = {de}
}
@incollection{Kirchner2018,
  author    = {Kirchner, Vera},
  title     = {Die (fast) vergessene Mauer},
  series = {Geschichte und Geschehen 9/10 f{\"u}r das Land Berlin/Brandenburg},
  booktitle = {Geschichte und Geschehen 9/10 f{\"u}r das Land Berlin/Brandenburg},
  publisher = {Sauer},
  address   = {Leipzig},
  isbn      = {978-3-12443-635-1},
  pages     = {220 -- 221},
  year      = {2018},
  language  = {de}
}