REFERENCES
- Griffen, T. D. 1975. ‘Lenis initials in Welsh borrowings‘. Language Sciences 36:6–12.
- Jackson, Kenneth H. 1953. Language and history in early Britain. Cambridge: Harvard U. Press.
- Jackson, Kenneth H. 1967. A Historical phonology of Breton. Dublin: Institute for Advanced Studies.
- Thomas, Alan R. 1966. ‘Systems in Welsh phonology‘. Studia celtica 1:93–127.
- Willis, Penny. 1986. ‘The phonemic status of the Welsh voiceless nasals‘. Paper delivered at the Kentucky Foreign Language Conference, Lexington, Ky., April 24–26, 1986. (Unpublished; copies available on request.)