@book { kreativDenkenbeherztMachenerfolgreichSkalieren,
    title = "kreativ Denken, beherzt Machen, erfolgreich Skalieren",
    author = "Jurgen {Appelo} and Meike {Grow}",
    year = "2020",
    publisher = "Vahlen",
    address = "München, Deutschland",
    url = "https://vahlen.openpublishing.com/document/1219130"
}