KJELLBERG, A. The Decline in Swedish Union Density since 2007. Nordic Journal of Working Life Studies, [S. l.], v. 1, n. 1, p. pp. 67–93, 2011. DOI: 10.19154/njwls.v1i1.2336. Disponível em: https://tidsskrift.dk/njwls/article/view/26804. Acesso em: 8 dec. 2021.