求助几篇sicencedirect文献

求助几篇sicencedirect文献，谢谢坛友了！
Energy and emissions efficiency patterns of Chinese regions: A multi-directional efficiency analysis
Applied Energy, Volume 104, April 2013, Pages 105-116
Ke Wang, Yi-Ming Wei, Xian Zhang

Analysis of environmental efficiency variations: A nutrient balance approach Original Research Article
Ecological Economics, Volume 86, February 2013, Pages 37-46
Viet-Ngu Hoang, Trung Thanh Nguyen

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

Eco-efficiency trends in China, 1978–2010: Decoupling environmental pressure from economic growth Original Research Article
Ecological Indicators, Volume 24, January 2013, Pages 177-184
Yadong Yu, Dingjiang Chen, Bing Zhu, Shanying Hu
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kidding？
可能有点少