1. Petch, N.J., The cleavage strength of polycrystals, J. Iron Steel Inst., 1953, vol. 174, pp. 25–28.
2. Trefilov, V.I., Mil’man, Yu.V., and Firstov, S.A., Fizicheskie osnovy prochnosti tugoplavkikh metallov (Physical Principles Underlying the Strength of Refractory Metals), Kiev: Naukova Dumka, 1975.
3. Panin, V.E., Grinyaev, Yu.V., Danilov, V.I., et al., Strukturnye urovni plasticheskoi deformatsii i razrusheniya (Structural Levels of Plastic Deformation and Failure), Novosibirsk: Nauka, 1990.
4. Rybin, V.V., Bol’shie plasticheskie deformatsii i razrushenie metallov (Large Plastic Deformation and Failure of Metals), Moscow: Metallurgiya, 1986.
5. Rybin, V.V., Structural and kinetic aspects of developed plastic deformation, Izv. Vyssh. Uchebn. Zaved., Fiz., 1991, no. 3, pp. 7–22.