ZHIGANG, Feng; ZHIQIANG, Zhang; HAO, Liu. The transfer characteristics of the world technological activities center countries: The perspective of patent big data analysis: 世界技术活动中心国家转移特征研究—基于专利大数据分析视角. Studies in Science of Science, [S. l.], v. 43, n. 7, p. 502–515, 2025. DOI: 10.65967/siss.v43i7.93. Disponível em: https://casscience.cn/siss/article/view/93. Acesso em: 24 mar. 2026.