@book { TessaundTimMeerschweingehabt,
    title = "Tessa und Tim: Meerschwein gehabt",
    author = "Corinna {Wieja}",
    year = "2015",
    publisher = "TUBUK.digital",
    address = "München, Deutschland",
    url = "https://tubuk.openpublishing.com/document/299705"
}