GREIFFENBERG, M.; REINHOLT PETERSEN, N. The effect of high and low vowels on the fundamental frequency in singing: Some preliminary observations . Annual Report of the Institute of Phonetics University of Copenhagen, [S. l.], v. 16, p. 101–111, 2022. DOI: 10.7146/aripuc.v16i.131766. Disponível em: https://tidsskrift.dk/ARIPUC/article/view/131766. Acesso em: 19 oct. 2024.