1. Z. Surovyak, A. M. Margolin, I. N. Zakharchenko, et al., Thin Solid Films 176, 227 (1989).
2. I. N. Zakharchenko, E. V. Sviridov, V. A. Alyoshin, and L. A. Sapozhnikov, in Abstracts of the Second International Seminar in Relaxor Ferroelectrics, Dubna, 1998, p. 112.
3. Z. Surovyak, A. E. Panich, and V. P. Dudkevich, Thin Ferroelectric Films (Rostovskii Pedagog. Univ., Rostov-on-Don, 1994).
4. V. M. Mukhortov, Yu. I. Golovko, V. A. Aleshin, et al., Phys. Status Solidi A 77(1), K37 (1983).
5. O. A. Bunina, I. N. Zakharchenko, P. N. Timonin, and V. P. Sakhnenko, Kristallografiya 40(4), 708 (1995) [Crystallogr. Rep. 40, 655 (1995)].