1. The durability of conservative restorations;Allan;Br. Dent. J.,1969
2. Annual Report;Dental Estimates Board,1973
3. An in vivo morphological study of cavity and amalgam margins on the occlusal surfaces of human teeth;Elderton,1975
4. Report No. 2;Experimental Dental Care Project,1973
5. Caries resistance of filling materials;Harvey;Dent. Progr.,1962