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Sims-Williams, P 2021, 'Britons, Thracians, King Alfred, and 'Sir Orfeo'', Cambrian Medieval Celtic Studies, vol. 82, no. Winter 2021, pp. 1-33.

Sims-Williams, P 2021, '‘Dark’ and ‘Clear’ Y in Medieval Welsh Orthography: Caligula versus Teilo', Transactions of the Philological Society, vol. 119, no. 1, pp. 1-39. 10.1111/1467-968X.12205

Sims-Williams, P 2020, 'An Alternative to ‘Celtic from the East’ and ‘Celtic from the West’', Cambridge Archaeological Journal, vol. 30, no. 3, pp. 511-529. 10.1017/S0959774320000098

Sims-Williams, P 2018, 'IE *peug′- /*peuk′- ‘to pierce’ in Celtic: Old Irish og 'sharp point', ogam, and uaigid 'stitches', Gallo-Latin Mars Ugius, Old Welsh- ug and Middle Welsh -y 'fist', Middle Welsh vch 'fox', and ancient names like Uccius', Transactions of the Philological Society, vol. 116, no. 1, pp. 117-130. 10.1111/1467-968X.12107