LIEBENBERG, S. Grootboom and the seduction of the negative/positive duties dichotomy. Southern African Public Law, [S. l.], v. 26, n. 1, p. 37–59, 2011. Disponível em: https://unisapressjournals.co.za/index.php/SAPL/article/view/15208. Acesso em: 12 may. 2024.