GERARD JENNHWA CHANG2018-09-102018-09-102006http://www.scopus.com/inward/record.url?eid=2-s2.0-33746933273&partnerID=MN8TOARShttp://scholars.lib.ntu.edu.tw/handle/123456789/321003journal article10.1016/j.disc.2006.04.003