↑ Jacob Grimm, Teutonic Mythology, 4th ed. tr. James Steven Stallybrass, Volume 1 London: George Bell, 1882, OCLC457311367, note1, p.219.
↑ E. O. G. Turville-Petre, Myth and Religion of the North: The Religion of Ancient Scandinavia, History of Religion, London: Weidenfeld and Nicolson, 1964, OCLC3264532, p.162, note2, p.306.