1. Abram, C., Evergreen Ash: Ecology and Catastrophe in Old Norse Myth and Literature (Charlottesville, VA: University of Virginia Press, 2019), https://doi.org/10.2307/j.ctvbcd06q
2. Bailey, R. N., and R. Cramp, Corpus of Anglo-Saxon Stone Sculpture, Volume II: Cumberland, Westmorland and Lancashire North-of-the-Sands (Oxford: Oxford University Press, 1988) [includes the Gosforth Cross].
3. Bek-Pedersen, K., The Norns in Old Norse Mythology (Edinburgh: Dunedin, 2011).
4. Bugge, S., The Home of the Eddic Poems with Especial Reference to the Helgi-Lays, rev. edn (London: D. Nutt, 1899).
5. Dronke, U., ‘Völuspá and Satiric Tradition’, Annali dell’ Universitario Orientale, Napoli, Sezione Germanica 22 (1979), 57–86.