@book { SCHWEDISCHREISENFRANFNGER,
    title = "SCHWEDISCH REISEN FÜR ANFÄNGER",
    author = "Christian {Wüsteneck}",
    year = "2023",
    publisher = "via tolino media",
    address = "München, Deutschland",
    url = "https://tolino.openpublishing.com/document/1395242"
}