search query: @author Ning, Jiajun / total: 1
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| title | year | author | ||
| 1. |
Economy and Information (c)
1998 : 8, p.50-51 |
1998 | Ning, Jiajun |
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| title | year | author | ||
| 1. |
Economy and Information (c)
1998 : 8, p.50-51 |
1998 | Ning, Jiajun |