References
- ANGLE, E. H. (1907): Treatment of Malocclusion of the Teeth. Chapt. XIII. 7th Edition. Philadelphia: S. S. White.
- BOLTON, W. A. (1962): The clinical application of a tooth-size analysis. American Journal of Orthodontics, Vol. 48, No. 7, pp. 504-529.
- CRYER, B. S. (1967): Third molar eruption and the effect of extraction of adjacent teeth. The Dental Practitioner, Vol. 17, No. II, pp. 405-416.