Tseng, Chun-Yao. "Technology development and knowledge spillover in Africa: evidence using patent and citation data." International Journal of Technology Management 45/1-2 (2009): 50-61.

Tseng, Chun-Yao. "Technology development and knowledge spillover in Africa: evidence using patent and citation data." International Journal of Technology Management 45/1-2 (2009): 50-61.