@book { SystemederKostenundErlsrechnung, title = "Systeme der Kosten- und Erlösrechnung", author = "Marcell {Schweitzer} and Hans-Ulrich {Küpper} and Gunther {Friedl} and Christian {Hofmann} and Burkhard {Pedell}", year = "2015", publisher = "Vahlen", address = "München, Deutschland", url = "https://vahlen.openpublishing.com/document/1220953" }