@article{Wickel2004,
  author    = {Wickel, Hans Hermann},
  title     = {Mauern einreißen},
  series = {Praxis Spiel + Gruppe},
  volume    = {17},
  journal   = {Praxis Spiel + Gruppe},
  number    = {3},
  pages     = {113 -- 118},
  year      = {2004},
  language  = {mul}
}
@article{Wickel2004,
  author    = {Wickel, Hans Hermann},
  title     = {Ach, bittrer Winter},
  series = {Grundschule Musik},
  volume    = {32},
  journal   = {Grundschule Musik},
  pages     = {30 -- 34},
  year      = {2004},
  language  = {mul}
}
@article{Hoffmann2004,
  author    = {Hoffmann, Bernward},
  title     = {Spiritualit{\"a}t...},
  series = {Praxis Spiel und Gruppe},
  volume    = {17},
  journal   = {Praxis Spiel und Gruppe},
  number    = {3},
  pages     = {90 -- 95},
  year      = {2004},
  language  = {mul}
}