@article{Poettrich1994,
  author    = {P{\"o}ttrich, Hans-J{\"o}rg},
  title     = {Zum Konzept einer medienp{\"a}dagogischen Lehrerbildung},
  year      = {1994},
  language  = {de}
}
@book{Poettrich1995,
  author    = {P{\"o}ttrich, Hans-J{\"o}rg},
  title     = {Unterrichtsthema : Werbung in H{\"o}rfunk und Fernsehen},
  publisher = {Univ.},
  address   = {Potsdam},
  pages     = {30 S.},
  year      = {1995},
  language  = {de}
}
@book{Poettrich1996,
  author    = {P{\"o}ttrich, Hans-J{\"o}rg},
  title     = {Deutschlands K{\"u}he sind lila : Werbewirkung und erzieherische Konzepte},
  publisher = {Univ.},
  address   = {Potsdam},
  pages     = {18 S.},
  year      = {1996},
  language  = {de}
}