1. P. L. Chu, Electron. Lett. 24, 736 (1977).
2. L. Pagnotta and A. Poggialini, Soc. Exp. Mech. 43, 69 (2003).
3. D. D. Karov, B. V. Makushkin, S. P. Sivko, S. N. Ushakov, and A. B. Fadeev, in Proceedings of the 4th All-Union Symposium on Computational Tomography, Tashkent, 1989 (Inst. Mat. SO AN SSSR, Novosibirsk, 1989), p. 202.
4. M. Born and E. Wolf, Principles of Optics (Pergamon, Oxford, 1968).
5. D. D. Karov, Extended Abstract of Cand. Sci. Dissertation (SPb State Polytech. Univ., St. Petersburg, 2012).
https://doi.org/fizmathim.com/read/369384/a?#?page=16.