@book { KnutHamsunNovelist,
    title = "Knut Hamsun, Novelist",
    subtitle = "A Critical Assessment",
    author = "Sverre {Lyngstad}",
    year = "2005",
    publisher = "Peter Lang Verlag",
    address = "New York, United States of America",
    url = "https://www.peterlang.com/document/1100323"
}