1. A cast gold base for endodontically treated molar roots where divergent form precludes parallel post construction;Abdullah;Dent. Dig.,1970
2. The restoration of pulpless teeth;Baraban;Dent. Clin. North Am.,1967
3. Restoration of the devitalized tooth;Cooper,1973
4. Mouth Rehabilitation;Kornfeld,1975
5. Kurer, P. F.: Retention of post crowns a solution of the problem. Brit. Dent. J., August 15, 1967, pp. 167-169.