Čeponis, Andrius, and Dalius Mažeika. “Piezoelectric Systems As an Alternative Energy Source”. Mokslas – Lietuvos ateitis / Science – Future of Lithuania 6, no. 6 (March 5, 2015): 676-681. Accessed November 24, 2024. https://transport.vgtu.lt/index.php/MLA/article/view/3653.