Comprehensiveness and Overlap in Open Access Systems: Search Engines, Aggregate Institutional Repositories and Physic Open Sources. - Ming-yueh Tsay; Tai-luan Wu (ISSI, 2017)

Comprehensiveness and uniqueness of commercial databases and open access systems. - Ming-yueh Tsay; Yu-Wei Tseng; Tai-luan Wu (Scientometrics, 2019)