SAO network analysis of patents for technology trends identification: a case study of polymer electrolyte membrane technology in proton exchange membrane fuel cells Authors: Sungchul Choi, Janghyeok Yoon, Kwangsoo Kim, Jae Yeol Lee, and Cheol-Han Kim
Measuring economic journals’ citation efficiency: a data envelopment analysis approach Authors: George Emm Halkos and Nickolaos G. Tzeremes
Evolution of knowledge creation and diffusion: the revisit of Taiwan's Hsinchu Science Park Author: Mei-Chih Hu