Design and characterization of a fractal-inspired multi-frequency piezoelectric energy converter. Fracture and Structural Integrity, [S. l.], v. 7, n. 23, p. Pages 87–93, 2012. DOI: 10.3221/IGF-ESIS.23.09. Disponível em: https://staging.fracturae.com/index.php/fis/article/view/166. Acesso em: 16 oct. 2026.