@book { KlassischeBudgetierungBetterBudgetingoderBeyondBudgeting, title = "Klassische Budgetierung, Better Budgeting oder Beyond Budgeting?", author = "Josef {Mathias}", year = "2008", publisher = "Diplom.de", address = "Hamburg, Deutschland", doi = "10.3239/9783836624176", url = "https://m.diplom.de/document/226431" }