1. A Treatise on Oral Deformities as a Branch of Mechanical Surgery;Kingsley,1980
2. Treatment of malocclusion of the teeth;Angle,1907
3. The question of extraction in orthodontia;Case;Trans NDA,1911
4. On the necessity of gnathostatic diagnoses in orthodontic practice;Simon;Int J Orthod,1926
5. Some facial features and their orthodontic implications;Hellman;Am J Orthod Oral Surg,1939