@book { TheAdventuresoftheHolyGrail,
    title = "The Adventures of the Holy Grail",
    subtitle = "A Study of La Queste del Saint Graal</I>",
    author = "Andrea {Williams}",
    year = "2001",
    publisher = "Peter Lang Verlag",
    address = "Oxford, United Kingdom",
    url = "https://www.peterlang.com/document/1092908"
}