1. V. Novatskii, Theory of Elasticity (Mir, Moscow, 1975) [in Russian].
2. A. F. Ulitko, Vector Expansions in the Space Theory of Elasticity (Akademperiodika, Kiev, 2002) [in Russian].
3. G. Ya. Popov, Prikl. Mat. Mekh. 65(3), 458 (2005).
4. G. Ya. Popov, Mat. Metody i Fiz.-Mekh. Polya 46(3), 74 (2003).
5. H. Bateman and A. Erdelyi, Higher Trancendental Functions (Nauka, Moscow, 1965), Vol. 1 [in Russian].