@book { ManagementbySauron,
    title = "Management by Sauron",
    author = "Harri V. {Hietikko} and Ossi {Hiekkala} and Gabriele {Schrey-Vasara}",
    year = "2018",
    publisher = "Vahlen",
    address = "München, Deutschland",
    url = "https://vahlen.openpublishing.com/document/1219102"
}