1. An experimental investigation of enamel, dentin and dental pulp;Fish,1933
2. Enamel penetration by radioactive salts of zinc, calcium, silver, plutonium, palladium and copper;Wainwright;JADA,1951
3. Marginal penetration of dental restorations by different radioactive isotopes;Going;J Dent Res,1960
4. Marginal penetration of dental restorations as studied by crystal violet dye and I131;Going;JADA,1960
5. In vitro studies on the marginal leakage of restorative materials;Swartz;JADA,1961