search query: @author Yu, Yuefeng / total: 1
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| title | year | author | ||
| 1. |
Economy and Information (c)
1996 : 3, p.16-17 |
1996 | Yu, Yuefeng |
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| title | year | author | ||
| 1. |
Economy and Information (c)
1996 : 3, p.16-17 |
1996 | Yu, Yuefeng |