@book { 1000XWirstehenzusammenBand4,
    title = "1000X Wir stehen zusammen Band 4",
    author = "Maurizio {Palumbo}",
    year = "2023",
    publisher = "Maurizio Palumbo",
    address = ", Deutschland",
    url = "https://tolino.openpublishing.com/document/1377790"
}