COOPER, Alan J. An automated approach to the Electric Network Frequency (ENF) criterion - Theory and practice. International Journal of Speech, Language and the Law, [S. l.], v. 16, n. 2, p. 193–218, 2010. DOI: 10.1558/ijsll.v16i2.193. Disponível em: https://journal.equinoxpub.com/IJSLL/article/view/6099. Acesso em: 10 apr. 2025.