Huang, M.-H.M.-H.HuangChang, H.-W.H.-W.ChangDAR-ZEN CHENMU-HSUAN HUANG2020-01-132020-01-132012https://scholars.lib.ntu.edu.tw/handle/123456789/447146The trend of concentration in scientific research and technological innovation: A reduction of the predominant role of the U.S. in world research & technologyjournal article10.1016/j.joi.2012.03.0032-s2.0-84860815321https://www.scopus.com/inward/record.uri?eid=2-s2.0-84860815321&doi=10.1016%2fj.joi.2012.03.003&partnerID=40&md5=10a276f1066de2e9f92d94bf833a8ef9