@book { berwiegendHimmelEinFrauenleben,
    title = "Überwiegend Himmel. Ein Frauenleben",
    author = "Maria M. {Koch}",
    year = "2023",
    publisher = "via tolino media",
    address = "München, Deutschland",
    url = "https://tolino.openpublishing.com/document/1333997"
}