@book { DiedritteSchwester,
    title = "Die dritte Schwester",
    subtitle = "Ein Irland-Roman",
    author = "Liz {Balfour}",
    year = "2020",
    publisher = "dotbooks Verlag",
    address = "München, Deutschland",
    url = "https://www.dotbooks.de/document/583736"
}