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Lindow 2002. Lindow, John (2002). Norse mythology : a guide to the Gods, heroes, rituals, and beliefs. Oxford: Oxford University Press. pp. 13, 37, 54–56. ISBN9786610532490. OCLC1136323846.
Crawford 2015. Crawford, Jackson (2015). The Poetic Edda : stories of the Norse Gods and heroes. Chicago: Hackett Publishing Company, Inc. pp. 12–14, 47–58, 68, 95. ISBN978-1-62466-358-1. OCLC905921490.