1. Aagesen, L. K., et. al.: Inheritance of the craniofacial complex and tooth diameters in families. Progress Report, 1971 Orthodontic Projects, June 1 to May 31, 1971.
2. Baru, H. D., et. al.: Inheritance of the craniofacial complex. Thesis, University of Michigan, Ann Arbor, 1968.
3. On the growth pattern of the human head from the third month to the eighth year of life;Brodie;Amer. J. Anat.,1941
4. Craniofacial growth and malocclusion: A multivariate approach to the study of the skeletal contribution to Class II malocclusion;Harris;Europ. Orthodont. Soc. Rep. Cong.,1965
5. Robert, J. C.: A cephalometric study of Class II Division 1 malocclusion. Thesis, University of Michigan, Ann Arbor, 1967.