FEIG, G. The Expanded Freshwater and Terrestrial Environmental Observation Network (EFTEON). Clean Air Journal, [S. l.], v. 28, n. 2, 2018. DOI: 10.17159/2410-972X/2018/v28n2a14. Disponível em: https://cleanairjournal.org.za/article/view/6940. Acesso em: 29 mar. 2024.