@book { DasLiedvonGlckundSommer,
    title = "Das Lied von Glück und Sommer",
    author = "Anita {Burgh} and Traudl {Weiser}",
    year = "2020",
    publisher = "dotbooks Verlag",
    address = "München, Deutschland",
    url = "https://m.dotbooks.de/document/889162"
}