S. MUC and T. GUDRA, “Transmission of Ultrasonic Waves Via Optical Silica Glass Fiber Doped by 7.5% of TiO2 with the Use of Power Sandwich Transducer”, Arch. Acoust., vol. 36, no. 1, pp. 141–150, Oct. 2013, Accessed: Apr. 25, 2025. [Online]. Available: https://acoustics3.ippt.pan.pl/index.php/aa/article/view/202