HELD, G; SCHEIFINGER, H; SNYMAN, G.M. Possible accumulation and recirculation of pollutants in the atmosphere of the Highveld. Clean Air Journal, [S. l.], v. 8, n. 7, 1993. DOI: 10.17159/caj/1993/8/7.7313. Disponível em: https://cleanairjournal.org.za/article/view/7313. Acesso em: 20 jun. 2024.