@book{Hoffmann2000,
  author    = {Hoffmann, Bernward},
  title     = {Klick dich ein},
  edition   = {1. Aufl.},
  publisher = {Matthias-Gr{\"u}newald-Verl.},
  address   = {Mainz},
  isbn      = {3-7867-2284-6},
  pages     = {104 S. : Ill.},
  year      = {2000},
  language  = {de}
}
@book{Hoffmann2000,
  author    = {Hoffmann, Bernward},
  title     = {Kommunikation und Medien},
  volume    = {3},
  edition   = {1. Aufl.},
  publisher = {Waxmann},
  address   = {M{\"u}nster [u.a.]},
  isbn      = {3-89325-821-3},
  pages     = {268 S. : zahlr. Ill., graph. D},
  year      = {2000},
  language  = {de}
}
@book{Hoffmann1993,
  author    = {Hoffmann, Bernward},
  title     = {Medienp{\"a}dagogik im kirchlichen Feld},
  edition   = {1. Aufl.},
  publisher = {Fischer},
  address   = {M{\"u}nchen},
  isbn      = {3-88927-138-3},
  pages     = {350 S. : graph. Darst.},
  year      = {1993},
  language  = {de}
}