@book { DunkleGeheimnissedesMilliardrs,
    title = "Dunkle Geheimnisse des Milliardärs",
    author = "Melanie {Marchande}",
    year = "2022",
    publisher = "well-read loris",
    address = ", Deutschland",
    url = "https://tolino.openpublishing.com/document/1263120"
}