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| 2015, Vol. 32(1): 56-60 DOI: | ||
| A Study on Sino-US Trade Efficiency Evaluation and Optimized Improvement | ||
| ZONG Gang, LIU Lu | ||
| Economics and Management School, Beijing University of Technology, Beijing 100124, China | ||
| Received 2015-01-15 Revised 2015-01-15 | ||
| Supporting info | ||
| null | ||
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