1. Grigor’ev, V.A., Lun’kov, A.A., and Petnikov, V.G., Acoust. Phys., 2015, vol. 61, no. 1, p. 85.
2. Grigor’ev, V.A., Lun’kov, A.A., and Petnikov, V.G., Uch. Zap. Fiz. Fak. Mosk. Gos. Univ., 2014, no. 6, p. 146335.
3. Lunkov, A.A., Petnikov, V.G., and Chernousov, A.D., Acoust. Phys., 2015, vol. 61, no. 6, p. 707.
4. Brekhovskikh, L.M., Volny v sloistykh sredakh (Waves in Layered Media), Moscow: Nauka, 1973.
5. Dmitriev, K.V., Lipavskiy, A.S., Pankov, I.A., and Sergeev, S.N., Bull. Russ. Acad. Sci.: Phys., 2018, vol. 82, no. 11, p. 1411.