Xiaoyang MuLi Wang2025-05-222025-05-222022jz000178-0125https://tustorage.ulb.tu-darmstadt.de/handle/tustorage/36794600Research on the Principal–Agent Mechanism of Poverty Alleviation through Mandarin Popularization in Ethnic Minority Areas from the Perspective of Ability IncentiveArticlehttps://doi.org/10.3390/systems10040126