Hsiao BCHING-CHIN CHERNYu M.-M.2020-02-122020-02-122012https://www.scopus.com/inward/record.uri?eid=2-s2.0-84865462222&doi=10.1016%2fj.dss.2012.05.017&partnerID=40&md5=90b4bb54b01159abcb59b7c224de2e62https://scholars.lib.ntu.edu.tw/handle/123456789/457961Measuring the relative efficiency of IC design firms using the directional distance function and a meta-frontier approachjournal article10.1016/j.dss.2012.05.0172-s2.0-84865462222