MARITZ, P.; BEUKES, J.; VAN ZYL, P.; CONRADIE, E.; LIOUSSE, C.; GALY-LACAUX, C.; CASTÉRA, P.; RAMANDH, A.; MKHATSHWA, G.; VENTER, A.; PIENAAR, J. Spatial and temporal assessment of organic and black carbon at four sites in the interior of South Africa. Clean Air Journal, [S. l.], v. 25, n. 1, p. 20, 2015. DOI: 10.17159/2410-972X/2015/v25n1a1. Disponível em: https://cleanairjournal.org.za/article/view/7019. Acesso em: 28 feb. 2024.