VAN ROOYEN, Dr. Atmospheric pollution in special environments. Clean Air Journal, [S. l.], v. 1, n. 1, 1971. DOI: 10.17159/caj/1971/1/1.7187. Disponível em: https://cleanairjournal.org.za/article/view/7187. Acesso em: 24 may. 2025.