1. Biomechanical aspects of stability of occlusion: retention and stability in orthodontics;Kubein-Meesenburg,1993
2. Begg orthodontic theory and technique;Begg,1977
3. Color atlas of dental medicine: orthodontic-diagnosis;Rakosi,1993
4. Orthodontics principles and practice;Graber,1966
5. Dentofacial orthopedics with functional appliances;Graber,1997