@incollection{Wickel2001,
  author    = {Hans Hermann Wickel},
  title     = {Musik in der sozialen Arbeit},
  booktitle = {Siegmund Helms/Reinhard Schneider \& Rudolf Weber, Praxisfelder der Musikp{\"a}dagogik},
  edition   = {1.},
  isbn      = {3-7649-2674-0},
  year      = {2001},
}