@book { KylaKriegerindergrnenWasser,
    title = "Kyla – Kriegerin der grünen Wasser",
    author = "Regina {Raaf}",
    year = "2016",
    publisher = "via tolino media",
    address = "München, Deutschland",
    url = "https://tolino.openpublishing.com/document/1282282"
}