1. Porcelain baked on gold—a new method in prosthodontics;Becker;J Prosthet Dent,1956
2. Modern practice in dental ceramics;Johnston,1967
3. Construction of combination porcelain to gold & porcelain jacket;Jeffrey;Natl Assoc Cert Dent Lab J,1969
4. Modern practice in crown and bridge prosthodontics;Johnston,1971
5. The collarless metal ceramic crown;Goodacre;J Prosthet Dent,1977