irregular alternation

Sources

• BLOOMFIELD 1933 213

  BLOOMFIELD, Leonard. (1933) Language. New York: Henry Holt.

• IEL Vol. III, 14

  International Encyclopedia of Linguistics. (1992) New York: Oxford University Press.

• TRASK 1996 18

  TRASK, R. L. (1996) A Dictionary of Phonetics and Phonology. London: Routledge.