@book{Sch{\"o}n2018,
  author    = {Sch{\"o}n, Dietmar},
  title     = {Planung und Reporting im BI-gest{\"u}tzen Controlling},
  publisher = {Springer Gabler},
  address   = {Wiesbaden},
  isbn      = {978-3-658-19962-3},
  pages     = {XXVIII, 364},
  year      = {2018},
  language  = {de}
}
@book{Sch{\"o}n2016,
  author    = {Sch{\"o}n, Dietmar},
  title     = {Planung und Reporting},
  publisher = {Springer Gabler},
  address   = {Wiesbaden},
  isbn      = {978-3-658-08008-2},
  pages     = {364},
  year      = {2016},
  language  = {de}
}
@book{Sch{\"o}n2012,
  author    = {Sch{\"o}n, Dietmar},
  title     = {Planung und Reporting im Mittelstand},
  publisher = {Springer Gabler},
  address   = {Wiesbaden},
  isbn      = {978-3-8349-3603-5},
  pages     = {XXIII, 323},
  year      = {2012},
  language  = {de}
}