@article{HartoghWickel2015,
  author    = {Hartogh, Theo and Wickel, Hans Hermann},
  title     = {Musikgeragogik. Musikalische Bildung im Alter},
  series = {Das Orchester.},
  volume    = {63},
  journal   = {Das Orchester.},
  number    = {10},
  issn      = {0030-4468},
  pages     = {18 -- 20},
  year      = {2015},
  language  = {de}
}
@article{HartoghWickel2015,
  author    = {Hartogh, Theo and Wickel, Hans Hermann},
  title     = {High Fossility und Faltenrock. Musikgeragogik ist musikalische Bildung im Alter.},
  series = {KulturR{\"a}ume},
  volume    = {5},
  journal   = {KulturR{\"a}ume},
  number    = {8},
  issn      = {2193-6234},
  pages     = {13 -- 17},
  year      = {2015},
  language  = {de}
}