@book { AMorningAfterWar,
    title = "A Morning After War",
    subtitle = "C. S. Lewis and WWI",
    author = "K.J. {Gilchrist}",
    year = "2005",
    publisher = "Peter Lang Verlag",
    address = "New York, United States of America",
    url = "https://www.peterlang.com/document/1100362"
}