Tomás, R. A. F ; Ribeiro, F. Ramôa ; Santos, Victor Manuel Silva.. Tomás, R. A. F. . [et al.] .(2010). "Assessment of the impact of the European CO2 emissions trading scheme on the Portuguese chemical industry". Energy Policy, Vol. 38, No. 1: pp. 626-632. (Search PDF in 2023).
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2010