@book { Accelerate,
    title = "Accelerate",
    subtitle = "Strategischen Herausforderungen schnell, agil und kreativ begegnen",
    author = "John P. {Kotter} and Katrin {Klein}",
    year = "2015",
    publisher = "Vahlen",
    address = "München, Deutschland",
    url = "https://vahlen.openpublishing.com/document/1219068"
}