1. Vertical forces used during chewing of food;Howell;J. D. Res.,1950
2. A survey of the chewing ability of denture wearers;Manly;J. D. Res.,1951
3. Dental gold structures;Brumfield,1949
4. Dental engineering;Smyd;J. D. Res.,1948
5. The development of physical testing of dental materials and specifications for testing methods;Crowell;J.A.D.A.,1932