1. Who Is the Keyman? Integrating Two-Stage DEA and Social Network Analysis to Evaluate Operational and Environmental Efficiency in the Semiconductor Industry. (9th December 2020) Authors: Fang, Tzu-Yi Other Names: Chang Kuei-Hu Academic Editor. Journal: Mathematical problems in engineering Issue: Volume 2020(2020) Page Start: Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗