@book { AgileProzessoptimierung,
    title = "Agile Prozessoptimierung",
    author = "Marco {Olavarria} and Sabrina {Buschow}",
    year = "2021",
    publisher = "Vahlen",
    address = "München, Deutschland",
    url = "https://vahlen.openpublishing.com/document/1221372"
}