求助sciencedirect文献三篇

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A study of carbon dioxide emissions performance of China's transport sector
Original Research Article
Energy, In Press, Corrected Proof, Available online 4 January 2013
Guanghui Zhou, William Chung, Xiliang Zhang

Energy productivity and efficiency of maize accounting for the choice of growing season and environmental factors: An empirical analysis from Bangladesh
Original Research Article
Energy, Volume 49, 1 January 2013, Pages 329-336
Sanzidur Rahman, Md. Sayedur Rahman

Network DEA approach to airports performance assessment considering undesirable outputs
Original Research Article
Applied Mathematical Modelling, Volume 37, Issue 4, 15 February 2013, Pages 1665-1676
Sebastián Lozano, Ester Gutiérrez, Plácido Moreno

只下到第二篇，另外，第三篇我昨天已经上传过了

bxmzone 发表于 2013-1-7 09:03
只下到第二篇，另外，第三篇我昨天已经上传过了

非常感谢您的热心帮助！