1. The durability of conservative restorations;Allan;Br. Dent. J.,1969
2. A longitudinal study of dental restorations;Allan;Br. Dent. J.,1977
3. Quality evaluation of anterior restorations in private practice;Allander;Swed. Dent. J.,1989
4. The analysis and presentation of surgical results by actuarial methods;Anderson;J. Surg. Res.,1974
5. Longevity of restorations in dental school clinic;Bentley;J. Dent. Educ.,1986