NIKIFOROV, Andrey; KUSHNIR, Polina. ENERGY SAVING. PIEZOGENERATORS. HUMAN. ENVIRONMENT. TECHNOLOGY. Proceedings of the Students International Scientific and Practical Conference, Rezekne, Latvia, n. 22, p. 43–49, 2018. DOI: 10.17770/het2018.22.3638. Disponível em: https://journals23.rta.lv/index.php/HET/article/view/3638.. Acesso em: 9 apr. 2025.