@book { DieFibonacciFolge,
    title = "Die Fibonacci-Folge",
    author = "Bettina {Munz}",
    year = "2008",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783640096220",
    url = "https://www.hausarbeiten.de/document/111572"
}