1. Normal velopharyngeal function in speech;Lubker,1975
2. Anatomy of the normal velopharyngeal mechanism;Dickson,1975
3. Cleft palate—Anatomic and surgical considerations;Ruding;Plast Reconstr Surg,1964
4. Velopharyngeal function in cleft palate;Skolnick,1975
5. A note on the muscle of the palate and the superior constrictor;Whillis;J Anat,1930