1. Traumatic injuries of the teeth;Andreasen,1972
2. The six keys to normal occlusion;Andrews;Am. J. Orthod.,1972
3. Suggested treatment for missing lateral incisors;Carlsson;Angle Orthod.,1952
4. Über die therapeutischen Möglichkeiten der Behandlung von Frontzahnlücken;Droschl;Inf. Orthodont. u. Kieferorthop.,1974
5. The reduction of relapse in extraction cases;Edwards;Am. J. Orthod.,1971