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Proctor, B.-"The Effects of Hydrofluoric Acid Etching on the Strength of glasses," Physics and Chemistry of Glasses, vol. 3, No. 1, Feb. 1962. |
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Ullman, D. R. and Kreidle, N. J.-Glass Science and Technology, vol. 5, Elasticity and Strength in Glass, Academic Press 1980, Chapters 4 and 6. |