Mandra, A., I. Lyutak, and Z. Lyutak. “Modeling of Ultrasonic Guided Waves Propagation in a Waveguide With Cross-Section of Finite Size”. JOURNAL OF HYDROCARBON POWER ENGINEERING 1, no. 1 (December 8, 2014): 58–65. Accessed May 9, 2024. https://ogpe.nung.edu.ua/index.php/jhpe/article/view/13.