Bruce Haynes (1997), 'Tu ru or Not Tu ru: Paired Syllables and Unequal Tonguing Patterns on Woodwinds in the Seventeenth and Eighteenth Centuries', Performance Practice Review, 10, pp. 41-60

DOI link for Bruce Haynes (1997), 'Tu ru or Not Tu ru: Paired Syllables and Unequal Tonguing Patterns on Woodwinds in the Seventeenth and Eighteenth Centuries', Performance Practice Review, 10, pp. 41-60

Bruce Haynes (1997), 'Tu ru or Not Tu ru: Paired Syllables and Unequal Tonguing Patterns on Woodwinds in the Seventeenth and Eighteenth Centuries', Performance Practice Review, 10, pp. 41-60