PENNINGER, A. INVESTIGATION OF THE HELMHOLTZ RESONATOR CONSIDERED AS A NON-ACOUSTIC OSCILLATING SYSTEM. Periodica Polytechnica Mechanical Engineering, [S. l.], v. 31, n. 4, p. 271–282, 1987. Disponível em: https://pp.bme.hu/me/article/view/5708. Acesso em: 18 may. 2024.