| 标题 |
Knowledge polycentricity and technological diversification: evidence from U.S. Metropolitan Statistical Areas |
| 网址 | |
| DOI | |
| 其它 |
期刊:Industry and Innovation 作者:Yibo Qiao; Yingcheng Li; Yangyi Wu 出版日期:2026-07-23 |
| 求助人 | |
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(2025-6-4)