Dept. of Comput. Sci. & Inf. Eng., National Taiwan Univ.Wu, Ja-LingJa-LingWu2018-09-102018-09-101989http://www.scopus.com/inward/record.url?eid=2-s2.0-0024702637&partnerID=MN8TOARShttp://scholars.lib.ntu.edu.tw/handle/123456789/348156application/pdf630571 bytesapplication/pdfjournal article