RAKOV, Denis Sergeevich, Aleksandr S. RAKOV, Andrey N. KUDRYAVTSEV, Nikolay P. KRASNENKO, Yury A. CHURSIN, and Maksim A. MURIN. 2019. “A Study of Directional Patterns of Ultrasonic Parametric Array”. Archives of Acoustics 44 (2): 301–307. https://doi.org/10.24425/aoa.2019.128493.