@book { DasChatGPTPowerhandbuchVomEinsteigerzumProfi,
    title = "Das ChatGPT Powerhandbuch - Vom Einsteiger zum Profi",
    author = "Roman {Fessler} and Martina {Brakemeier}",
    year = "2023",
    publisher = "Verlag Mensch",
    address = ", Deutschland",
    url = "https://tolino.openpublishing.com/document/1415919"
}