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2. V. V. Bozhydarnyk and H. T. Sulym, Elements of the Theory of Plasticity and Strength [in Ukrainian], Vol. 1, Svit, Lviv (1999).
3. J. Pokluda, "Theoretical strength of solids: recent results and applications," Fiz.-Khim. Mekh. Mater., 47, No. 5, 5-12 (2011)
4. English translation: Mater. Sci., 47, No. 5, 575-582 (2012).
5. H. Kuchling, Physik Handbook, Fachbuchverlag, Leipzig (1980).