1. Treatise on Oral Deformities;Kingsley,1880
2. Treatment of Malocclusion of the Teeth;Angle,1907
3. Roentgen ray anthropometry of the skull;Pacini;J Radiol,1922
4. A new x-ray technique and its application to orthodontia;Broadbent;Angle Orthod,1931
5. Biologic orthodontic therapy and reality;Oppenheim;Angle Orthod,1936