1. Stimulated Optical Radiation in Ruby;Maiman;Nature,1960
2. Effect of Laser Beam Impacts on Teeth;Goldman;J. A. D. A.,1965
3. Laser Effects on Tissue and Materials Related to Dentistry;Kinersly;J. A. D. A.,1965
4. Laser Beam Effect on Dental Hard Tissues;Stern,1965
5. Physical Properties of Dental Materials;Souder,1942