Knowles-Berry, Susan «Linguistic decay in Chontal Mayan: the speech of semi-speakers». Anthropological Linguistics, 29, Winter 1987, pàg. 332–341. JSTOR: 30028108.
Dorian, Nancy C. «Fate of morphological complexity in language death: Evidence from East Sutherland Gaelic». Language, 54, setembre 1978, pàg. 590–609. JSTOR: 412788.