@incollection{MuellerSchoen2010,
  author    = {R{\"u}diger M{\"u}ller and Dietmar Sch{\"o}n},
  title     = {Mittelstands-Controlling f{\"u}r Inhaber und Manager (C1)},
  series = {Neue Anforderungen an das Management \& Controlling : Tagungsband},
  publisher = {Institut f{\"u}r Controlling},
  address   = {Dortmund},
  year      = {2010},
  language  = {de}
}