@book { LerneTrkischSchnellEinfachEffizient,
    title = "Lerne Türkisch - Schnell / Einfach / Effizient",
    author = "Pinhok {Languages}",
    year = "2022",
    publisher = "via tolino media",
    address = "München, Deutschland",
    url = "https://tolino.openpublishing.com/document/1305306"
}