1. Dentofacial orthopedics; current orthodontic concepts and techniques;Graber,1969
2. The use of activator in a system employing fixed appliances;Hasund;Trans. European Orthod. Soc.,1969
3. Funktionskieferorthopädie;Haüpl,1957
4. The nature of orthodontic diagnosis;Hixon,1966
5. Orthodontia in everyday practice;Hotz,1961