1. A. F. Ulitko, Method of Eigenvector Functions in Spatial Problems of Elasticity (Naukova Dumka, Kiev, 1979) [in Russian].
2. V. T. Grinchenko and A. F. Ulitko, Equilibrium of Elastic Solids of Canonical Shape (Naukova Dumka, Kiev, 1985) [in Russian].
3. V. T. Golovchan, V. D. Kubenko, N. A. Shul’ga, et al., Dynamics of Elastic Solids (Naukova Dumka, Kiev, 1986) [in Russian].
4. V. A. Babeshko, O. M. Babeshko, and O. V. Evdokimova, “On the Theory of a Block Element,” Dokl. Ross. Akad. Nauk 427(2), 183–186 (2009) [Dokl. Phys. (Engl. Transl.) 54 (7), 329–332 (2009)].
5. V. A. Babeshko, O.M. Babeshko, and O. V. Evdokimova, “On the Sadovskii’ Problem of Block Structures,” Dokl. Ross. Akad. Nauk 427(4), 480–485 (2009) [Dokl. Phys. (Engl. Transl.) 54 (8), 373–377 (2009)].