1. The pontostructor method;Karlstrom,1966
2. The pontostructor method;Karlstrom,1966
3. The pontostructor method;Karlstrom,1966
4. Theory and practice of crown and bridge prosthodontics;Tylman,1965
5. The relationship between retention and convergence angle in cemented veneer crowns;Jorgensen;Acta odont. scandinav.,1955