1. D. D. Ivlev, Theory of Perfect Plasticity (Nauka, Moscow, 1966) [in Russian].
2. D. D. Ivlev and G. I. Bykovtsev, Theory of a Reinforced Plastic Body (Nauka, Moscow, 1971) [in Russian].
3. V. D. Klyushnikov, Mathematical Theory of Plasticity (Mosk. Gos. Univ., Moscow, 1979) [in Russian].
4. D. D. Ivlev and L. V. Ershov, Perturbation Method in the Theory of Elastoplastic Body (Nauka, Moscow, 1978) [in Russian].
5. V. V. Sokolovskii, Theory of Plasticity (Vysshaya Shkola, Moscow, 1969) [in Russian].