@book{Rieg2019,
  author    = {Robert Rieg},
  title     = {Kosten- und Leistungsrechnung},
  publisher = {Books on Demand},
  address   = {Norderstedt},
  isbn      = {9783734783494},
  pages     = {240},
  year      = {2019},
  language  = {de}
}