1. Dimensional change on amalgams in air at 60 C;Paffenbarger;J Dent Res,1977
2. Guide to dental materials and devices, (1972-1973). Chicago, American Dental Association, p 22.
3. Revised American Dental Association Specification No. 1 for Alloy for Dental Amalgam;JADA,1977
4. Guide to dental materials and devices,1974
5. Marginal failures vs mechanical properties of amalgam;Mahler;J Dent Res,1970