1. Dental arch form related with intra oral forces;Brader;Am. J. Orthod.,1972
2. The borderline patient and tooth removal;Schwab;Am J. Orthod.,1971
3. Treatment of Malocclusion of the Teeth;Angle,1907
4. A Practical Treatise on the Techniques of Facial Orthopedia;Case,1921
5. Indications for the extraction of teeth in orthodontics;Tweed;Am. J. Orthod.,1944