1. The shrink-free ceramic crown;Sozio;J Prosthet Dent,1983
2. The castable ceramic crown;Adair;Int J Periodont Restor Dent,1984
3. Fracture resistance of different porcelain crown systems in-vitro [Abstract];Rodrigues;J Dent Res,1987
4. Axial strengths of foil, all-ceramic and PFM molar crowns;Vrijhoef;Dent Mater,1988
5. The fracture toughness (Klc) of amalgam;Lloyd;J Oral Rehabil,1985