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.
Os seus artigos sobre pronuncia inglesa na época de Shakespeare (publicados en Studia Neophilologica, English Studies e outros periódicos académicos) anticipar a súa obra principal Shakespeare's Works and Elizabethan pronunciation (Oxford, 1981), que foi citado como “o mellor traballo dispoñible” sobre o tema.