1. A. G. Voronovich and N. E. Mal’tsev, Akust. Zh. 25 (6), 860–867 (1979).
2. V. N. Filinov and G. P. Chernyi, Akust. Zh. 33 (4), 761–765 (1987).
3. V. N. Lobanov, I. I. Mikushin, and G. N. Seravin, Izv. Yuzhn. Fed. Univ. Tekhn. Nauki, No. 9, 129–134 (2013).
4. M. A. Raskita, A. S. Borisov, and S. A. Borisov, Metody Ustroist. Pered. Obrab. Inform., No. 9, 99–108 (2007).
5. S. V. Burenkov and Yu. V. Dudko, Akust. Zh. 37 (5), 886–891 (1991).