@book { HalldrLaxnessinDeutschland,
    title = "Halldór Laxness in Deutschland",
    author = "Gudrun Hrefna {Gudmundsdottir}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1076386"
}