Rosenstiel, S. F. and W. M. Johnston. "Effects of manipulative variables on the color of ceramic metal restorations." Journal of Prosthetic Dentistry 60/3 (1988): 297-303.

Rosenstiel, S. F. and W. M. Johnston. "Effects of manipulative variables on the color of ceramic metal restorations." Journal of Prosthetic Dentistry 60/3 (1988): 297-303.