1. M. S. Koval'chenko, ?Theory of impulsive hot pressing of a porous viscoelastoplastic body. I. Models and basic equations,? Poroshk. Metall., No. 4, 19?26 (1989).
2. M. S. Koval'chenko, ?Theory of impulsive hot pressing of a porous viscoelastoplastic body. II. Deformation and flow of plastic body,? Poroshk. Metall., No. 5, 20?24 (1989).
3. M. S. Koval'chenko, ?Theory of impulsive hot pressing of a porous viscoelastoplastic body. III. Application of the theory,? Poroshk. Metall., No. 6, 26?29 (1989).
4. A. Ango, Mathematics for Electrical and Radio Engineers [Russian translation], Nauka, Moscow (1965).
5. F. M. Morse and G. Feshbach, Methods of Theoretical Physics [Russian translation], Vol. 1, Izd. Inostr. Lit., Moscow (1958).