@book { ZeitlupeundZeitraffer,
    title = "Zeitlupe und Zeitraffer",
    author = "Nicolas {Hemmelmann}",
    year = "2008",
    publisher = "Diplom.de",
    address = "Hamburg, Germany",
    doi = "10.3239/9783836615570",
    url = "https://m.diplom.de/document/225924"
}