1. Penetration of radiocalcium at the margins of filling materials: a preliminary report;Armstrong;J.A.D.A.,1951
2. Fluid exchange at the margins of denial restorations;Nelsen;J.A.D.A.,1952
3. Penetration of radiocalcium at margins of acrylic restorations made by compression and non-compression technics;Sausen;J.A.D.A.,1953
4. Dental restorative materials: amalgams, acrylics;Crawford;J. D. Res.,1954
5. Effects of dental materials on the periodontal tissues;Zander,1956