@book{WickelHartogh2006,
  author    = {Wickel, Hans Hermann and Hartogh, Theo},
  title     = {Musik und H{\"o}rsch{\"a}den},
  edition   = {1. Aufl.},
  publisher = {Juventa-Verl.},
  address   = {Weinheim [u.a.]},
  isbn      = {3-7799-1951-6},
  pages     = {184 S. : Ill., graph. Darst.},
  year      = {2006},
  language  = {de}
}
@book{Wickel1998,
  author    = {Wickel, Hans Hermann},
  title     = {Musikp{\"a}dagogik in der sozialen Arbeit},
  volume    = {2},
  edition   = {1. Aufl.},
  publisher = {Waxmann},
  address   = {M{\"u}nster [u.a.]},
  isbn      = {3-89325-694-6},
  pages     = {167 S.},
  year      = {1998},
  language  = {de}
}
@book{WickelHartogh2004,
  author    = {Wickel, Hans Hermann and Hartogh, Theo},
  title     = {Handbuch Musik in der Sozialen Arbeit},
  publisher = {Juventa},
  address   = {Weinheim},
  isbn      = {3-7799-0787-9},
  pages     = {496 S.: graph. Darst.},
  year      = {2004},
  language  = {de}
}
@book{WickelHartogh2008,
  author    = {Wickel, Hans Hermann and Hartogh, Theo},
  title     = {Musizieren im Alter},
  edition   = {1. Aufl.},
  publisher = {Schott},
  address   = {Mainz [u.a.]},
  isbn      = {978-3-7957-87},
  pages     = {163 S. : Ill., graph. Darst.},
  year      = {2008},
  language  = {de}
}
@book{Wickel2009,
  author    = {Wickel, Hans Hermann},
  title     = {Musik bis ins hohe Alter. Fortf{\"u}hrung, Neubeginn, Therapie},
  editor    = {T{\"u}pker, Rosemarie},
  edition   = {2. Aufl.},
  publisher = {Books on Demand},
  address   = {Norderstedt},
  isbn      = {978-3-8391-0108-7},
  year      = {2009},
  language  = {de}
}
@book{WickelHartogh2011,
  author    = {Wickel, Hans Hermann and Hartogh, Theo},
  title     = {Praxishandbuch Musizieren im Alter},
  edition   = {1. Aufl.},
  publisher = {Schott Music},
  address   = {Mainz},
  isbn      = {978-3-7957-8747-9},
  year      = {2011},
  language  = {de}
}
@book{Wickel2013,
  author    = {Wickel, Hans Hermann},
  title     = {Musik kennt kein Alter},
  edition   = {1. Aufl.},
  publisher = {Carus/Reclam},
  address   = {Stuttgart},
  isbn      = {978-3-15-010950-2},
  year      = {2013},
  language  = {de}
}
@book{Wickel2018,
  author    = {Wickel, Hans Hermann},
  title     = {Musik in der Sozialen Arbeit},
  publisher = {Waxmann},
  address   = {M{\"u}nster},
  isbn      = {978-3-8252-4944-1},
  year      = {2018},
  language  = {de}
}