RYEN, Else. Befolknin gsmobilitet og spräkendring. Folia Scandinavica Posnaniensia, [S. l.], v. 3, p. 253–265, 2007. Disponível em: https://pressto.amu.edu.pl/index.php/fsp/article/view/11028. Acesso em: 29 dec. 2024.