The effects of the acoustic properties of second language vowel production on pronunciation evaluation. - Chris Sheppard (ExLing, 2008)

Validating Acoustic Measures of Speech Rhythm for Second Language Acquisition. - Naoko Kinoshita; Chris Sheppard (ICPhS, 2011)

Do Language Structure or Language Proficiency Affect Critical Evaluation? - Emmanuel Manalo; Kyoko Watanabe; Chris Sheppard (CogSci, 2013)

The creation of a new vowel category by adult learners after adaptive phonetic training. - Izabelle Grenon; Mikio Kubota; Chris Sheppard (J. Phonetics, 2019)