1. Treatment of malocclusion of the teeth;Angle,1907
2. Tissue changes, particularly of the bone, incident to tooth movement;Oppenheim;Osterr. Vierteljahrsschr. Zahnheilkd.,1911
3. Tissue changes involved in tooth movement;Johnson;Int. J. Orthod.,1926
4. Tissue changes incidental to orthodontic tooth movement;Schwartz;Int. J. Orthod.,1932
5. The importance of force in orthodontics;Smith;Aust. J. Dent.,1952