@book { KlavierstundeKurzgeschichteSpannung,
    title = "Klavierstunde (Kurzgeschichte, Spannung)",
    author = "Joan {Weng}",
    year = "2018",
    publisher = "booksnacks",
    address = "Stuttgart, Deutschland",
    url = "https://shop.digitalpublishers.de/document/386980"
}