@article{zou_sun_wang_2026,  title={From fragmentation to integration: China’s “Vertical-Horizontal Model” for the protection of overseas interests},  volume={69},  ISSN={0034-7329},  url={https://doi.org/10.1590/0034-7329202600101},  DOI={10.1590/0034-7329202600101},  number={1},  journal={Revista Brasileira de Política Internacional},  publisher={Centro de Estudos Globais da Universidade de Brasília},  author={Zou, Zhiqiang and Sun, Degang and Wang, Jinan},  year={2026},  pages={e001} }