This paper (originally delivered at the 2017 International Medieval Congress at the University of Leeds, UK) explores common lunar symbolism in "The Lay of Aotrou and Itroun" and "The Fall of Arthur."
"Magic, Matrimony, and the Moon: Medieval Lunar Symbolism in J.R.R. Tolkien’s “The Lay of Aotrou and Itroun” and “The Fall of Arthur”,"
Journal of Tolkien Research: Vol. 6:
2, Article 2.
Available at: https://scholar.valpo.edu/journaloftolkienresearch/vol6/iss2/2