Columbia subject headings:
Harvard subject headings:
Arthurian romances--Old Norse influences.
Celtic literature--Old Norse influences.
Mythology, Norse
Princeton subject headings:
Arthurian romances--History and criticism.
Avalon (Legendary place)
Comparative literature--Celtic and Old Norse.
Comparative literature--Old Norse and Celtic.
Imaginary places in literature.
Literature, Medieval--Themes, motives.
Mythology, Celtic, in literature.
Mythology, Norse, in literature.