1. V. M. Agranovitch and V. L. Ginzburg, Spatial-Dispersion Crystal Optics and the Theory of Excitons (Nauka, Moscow, 1979) [in Russian].
2. L. D. Landau and E. M. Lifshits, Electrodinamics of Continuous Media (Fizmatlit, Moscow, 1982; Pergamon, Oxford, 1984).
3. G. A. Vugal’ter, Zh. Tekh. Fiz. 59 (8), 92 (1989).
4. E. H. Lock, S. V. Gerus and A. Yu. Annenkov, Izv. Ross. Akad. Nauk, Ser. Fiz. 84(5), 714 (2020).
5. M. V. Davidovich, Tech. Phys. Lett. 32, 982 (2006).