BELLUIGI, A. Theory of Vibration in rubbing frictional materials. Annals of Geophysics, [S. l.], v. 18, n. 1, p. 15–27, 1965. DOI: 10.4401/ag-5494. Disponível em: https://www.annalsofgeophysics.eu/index.php/annals/article/view/5494. Acesso em: 3 aug. 2021.