1. Plastic Deformation of Optical Glass;Taylor;Nature,1949
2. Plastic Deformation of Optical Glass;Taylor;J. Soc. Glass Technol,1950
3. Diamond Pyramid Hardness of Glass in Relation to Strength and Structure of Glass: I;Ainsworth;ibid,1954
4. Scratch Formation and Molecular Strength;Smekal;Naturwissenschaften,1942
5. 5 E. Madelung , “Theory of Scratches,” ibid., pp. 223-24.