@book { FenjaZausehaar,
    title = "Fenja Zausehaar",
    author = "Katja {Stählin} and Katja {Stählin}",
    year = "2022",
    publisher = "via tolino media",
    address = "München, Deutschland",
    url = "https://tolino.openpublishing.com/document/1308935"
}