ADEYEMI, A.; MOLNAR, P.; BOMAN, J. .; WICHMANN, J. Source apportionment of fine atmospheric particles using positive matrix factorization in Pretoria, South Africa. Clean Air Journal, [S. l.], v. 32, n. 1, 2022. Disponível em: https://cleanairjournal.org.za/article/view/13931. Acesso em: 11 aug. 2022.