1. Extension of subjective logic for time-related trust
2. Ding, L.G., and S.Q. Yang (1990). “Parallel Move Lifting rare-earth Permanent Magnet (China. Patent No. 89209146.0).” China National Intellectual Property Administration, PRC. http://pss-system.cnipa.gov.cn/sipopublicsearch/patentsearch/showViewList-jumpToView.shtml
3. Ding, L.G., C.C. Gao, and S.H. Wang (1993). “Lifting Permanent Magnet Made of Rotary rare-earth Permanent Magnets (China. Patent No. 92209046.7).” China National Intellectual Property Administration, PRC.http://pss-system.cnipa.gov.cn/sipopublicsearch/patentsearch/showViewList-jumpToView.shtml
4. Ding, L.G., C.C. Gao, and N. Ding (1994). “Permanent Magnet for Turning Type Permanent Magnetic Hoist (China. Patent No. 92114974.3).” China National Intellectual Property Administration, PRC. http://pss-system.cnipa.gov.cn/sipopublicsearch/patentsearch/showViewList-jumpToView.shtml