↑ Christopher Bruce (1999) The Arthurian Name Dictionary. In manuscript form, the letters u, n, v (written ıı) are all easily confounded, as is m with any of them plus the vowel i (all written ııı) or any two of them with im or mi (all written ıııı).
↑ Jarman, A. O. H., "A Note on the Possible Welsh Derivation of Viviane", Gallica: Essays Presented to J. Heywood Thomas (Cardiff 1969) 1–12.
↑ Jarman, A. O. H., "Hwimleian, Chwibleian", Bulletin of the Board of Celtic Studies 16 (1954–1956) 72–76.
↑ Ford, Patrick K., "The Death of Merlin in the Chronicle of Elis Gruffudd", Viator: Medieval and Renaissance Studies, Vol 7 (1976), University of California Press, pp. 379–390, [381].
