Sophus Bugge, The Home of the Eddic poems: With Especial Reference to the Helgi-Lays, tr. William Henry Schofield, Grimm library 11, London: Nutt, 1899, OCLC2857921, p. 99.
Hugo Gering and Barend Symons, Kommentar zu den Liedern der Edda, Germanistische Handbibliothek 7(3), Halle: Buchhandlung des Waisenhauses, 1927, OCLC277594015, p. 14.
Tette Hofstra, "A note on the 'Darkness of the night' motif in alliterative poetry, and the search for the poet of the Old Saxon Heliand", in Loyal Letters: Studies on Mediaeval Alliterative Poetry & Prose, ed. L. A. J. R. Houwen and A. A. MacDonald, Mediaevalia Groningana 15, Groningen: Egbert Forsten, 1994, ISBN9789069800752, p. 104.
Christopher Tolkien and J. R. R. Tolkien, The treason of Isengard: The History of the Lord of the Rings, Part Two, Boston: Houghton Mifflin, 1989, ISBN9780395515624, p. 188.
Sophus Bugge, The Home of the Eddic poems: With Especial Reference to the Helgi-Lays, tr. William Henry Schofield, Grimm library 11, London: Nutt, 1899, OCLC2857921, p. 99.
Hugo Gering and Barend Symons, Kommentar zu den Liedern der Edda, Germanistische Handbibliothek 7(3), Halle: Buchhandlung des Waisenhauses, 1927, OCLC277594015, p. 14.