Variant Frequency in Flap Production: A Corpus Analysis of Variant Frequency in American English Flap Production. - David Patterson 001; Cynthia M. Connine (Phonetica, 2001)

Corpora Analyses of Frequency of Schwa Deletion in Conversational American English. - David Patterson 001; Paul C. Locasto; Cynthia M. Connine (Phonetica, 2003)