1. Syllabus of Complete Dentures, Philadelphia;Heartwell,1968
2. A Classification of Articulators;Thomas;J. Prosthet. Dent.,1973
3. Swenson's Complete Dentures;Boucher,1970
4. Choosing the Articulator;Beck;J. Am. Dent. Assoc.,1962
5. On the Reproduction of Dental Articulation by Means of Articulators, a Kinematic Investigation;Bergström;Acta Odontol. Scand.,1950