@book { HR2020PersonalmanagementderZukunft,
    title = "HR 2020 - Personalmanagement der Zukunft",
    author = "Benedikt {Hackl} and Fabiola {Gerpott}",
    year = "2014",
    publisher = "Vahlen",
    address = "München, Deutschland",
    url = "https://vahlen.openpublishing.com/document/1219067"
}