@book{Bartkowski1995,
  author    = {Bartkowski, Karin},
  title     = {Kunterbunt : unser Sprachbuch f{\"u}r Klasse 4 ; {\"U}bungsheft zur Rechtschreibung},
  editor    = {Bartnitzky, Horst},
  publisher = {Klett},
  address   = {Stuttgart [u.a.]},
  pages     = {72 S.},
  year      = {1995},
  language  = {de}
}
@book{Bartkowski1999,
  author    = {Bartkowski, Karin},
  title     = {Kunterbunt : unser Sprachbuch f{\"u}r Klasse 4 ; Kopiervorlagen zur Rechtschreibung},
  editor    = {Bartnitzky, Horst},
  publisher = {Klett},
  address   = {Stuttgart [u.a.]},
  pages     = {48 S.},
  year      = {1999},
  language  = {de}
}
@book{Bartkowski1994,
  author    = {Bartkowski, Karin},
  title     = {Kunterbunt : unser Sprachbuch f{\"u}r Klasse 3 ; {\"U}bungsheft zur Rechtschreibung},
  editor    = {Bartnitzky, Horst},
  publisher = {Klett},
  address   = {Stuttgart [u.a.]},
  pages     = {56 S.},
  year      = {1994},
  language  = {de}
}
@book{Bartkowski1994,
  author    = {Bartkowski, Karin},
  title     = {Kunterbunt : unser Sprachbuch f{\"u}r Klasse 2 ; {\"U}bungsheft zur Rechtschreibung},
  editor    = {Bartnitzky, Horst},
  publisher = {Klett},
  address   = {Stuttgart [u.a.]},
  pages     = {48 S.},
  year      = {1994},
  language  = {de}
}