@incollection{Enste2012,
  author    = {Peter Enste},
  title     = {Von Funktionalisten, Allroundern und Anspruchsvollen},
  booktitle = {Jahrbuch Seniorenwirtschaft 2012},
  editor    = {Rainer Fretschner and Josef Hilbert and Bernd Maelicke},
  year      = {2012},
}