Tumsys, O., and E. Jasiuniene. “The Focusing of the Ultrasonic Phased Array in the Case of Non-Contact NDE Methods”. Elektronika ir Elektrotechnika 20, no. 3 (March 4, 2014): 44-47. Accessed April 27, 2024. https://eejournal.ktu.lt/index.php/elt/article/view/3638.