PETERSEN, Henry. On British English p-, b-, sp- and -s + b-. Annual Report of the Institute of Phonetics University of Copenhagen, [S. l.], v. 6, p. 269–304, 1972. DOI: 10.7146/aripuc.v6i.130917. Disponível em: https://tidsskrift.dk/ARIPUC/article/view/130917. Acesso em: 5 dec. 2025.