@book { WeihnachtenaufSaltn,
    title = "Weihnachten auf Saltön",
    author = "Viveca {Lärn} and Susanne {Dahmann}",
    year = "2017",
    publisher = "dotbooks Verlag",
    address = "München, Deutschland",
    url = "https://m.dotbooks.de/document/351812"
}