@book { PROJEKTMANAGEMENTFRPROFIS,
    title = "PROJEKTMANAGEMENT FÜR PROFIS",
    author = "Markus {Thüring}",
    year = "2022",
    publisher = "Omnino Verlag",
    address = "Berlin, Deutschland",
    url = "https://shop.omnino-verlag.de/document/1281995"
}