RAU, G. German Clean Air Policy (FRG) - realisations by thermal power stations and problems caused by the operation of these systems. Clean Air Journal, [S. l.], v. 8, n. 3, 1991. DOI: 10.17159/caj/1991/8/3.7305. Disponível em: https://cleanairjournal.org.za/article/view/7305. Acesso em: 12 may. 2025.