RAVILA, P. Intense-Forms and Sound System. Finnisch-Ugrische Forschungen, [S. l.], v. 1953, n. 31, p. 133–148, 1953. DOI: 10.33339/fuf.112672. Disponível em: https://journal.fi/fuf/article/view/112672. Acesso em: 2 jun. 2024.