@book { DieChronikenvonUshaDerDrachenknig,
    title = "Die Chroniken von Usha - Der Drachenkönig",
    author = "Melissa {David}",
    year = "2019",
    publisher = "via tolino media",
    address = "München, Deutschland",
    url = "https://tolino.openpublishing.com/document/994644"
}