UFFMANN, C. London calling (or cooling?): Feature theory, phonetic variation, and phonological change. Yearbook of the Poznan Linguistic Meeting, [S. l.], v. 7, n. 1, p. 181–215, 2021. DOI: 10.14746/yplm.2021.7.8. Disponível em: https://pressto.amu.edu.pl/index.php/yplm/article/view/29444. Acesso em: 1 dec. 2022.