The punch and judy man: a study of phonological / phonetic variation. - Gavin J. Dempster; Sheila M. Williams; Sandra P. Whiteside (ICSLP, 1994)

The Durham telephone enquiry system. - Russell James Collingham; Kevin Johnson 001; David J. Nettleton; Gavin J. Dempster; Roberto Garigliano (Int. J. Speech Technol., 1997)