1. The individual missing tooth: a factor in dental and periodontal disease;Hirschfeld;J Am Dent Assoc.,1937
2. Physical, biological and psychological factors to be considered in the construction of dentures;De Van;J Am Dent Assoc.,1951
3. Factors that influence the provision of partial prosthetic appliances;Karlsen;J Dent.,1971
4. The 28-tooth syndrome - or should all teeth be replaced;Levin;Dent Survey.,1974
5. Periodontal aspects of restorative dentistry;Ramfjord;J Oral Rehabil.,1974