His articles on English pronunciation at Shakespeare’s time (published in “Studia Neophilologica”, “English Studies” and other specialized journals) anticipate his major work Shakespeare's Works and Elizabethan Pronunciation (Oxford, 1981), which has been cited as «the best work available» on the subject.
Hans artiklar om engelskt uttal på Shakespeares tid (publicerade i "Studia Neophilologica", "English Studies" och andra specialiserade tidskrifter) föregriper hans större verk Shakespeare's Works and Elizabethan Pronunciation (Oxford, 1981) som citeras som "det bästa tillgängliga verket" om ämnet.