Wang T.-R.WUH-LIANG HWU2020-12-162020-12-1619890141-8955https://www.scopus.com/inward/record.uri?eid=2-s2.0-0024468987&doi=10.1007%2fBF01799226&partnerID=40&md5=980ddf4ac09c4e6224e50dc6b55cedd8https://scholars.lib.ntu.edu.tw/handle/123456789/526128journal article10.1007/BF0179922625153752-s2.0-0024468987