1. Open Bite;Hellman;Int. J. Orthodontia,1931
2. The Self Correction of Orthodontic Anomalies;Kantorowicz,1926
3. A Serial Study of the Effects of Finger-Sucking;Ruttle;J. D. Res.,1953
4. Open Bite and Thumb Sucking in Rhesus Monkeys;Swindler;Angle Orthodontist,1962
5. Orthodontics: Practice and Technics;Salzmann,1957