CHIH-PING WEILee Y.-H.2020-02-102020-02-102004https://www.scopus.com/inward/record.uri?eid=2-s2.0-1242287862&doi=10.1016%2fS0167-9236%2803%2900028-9&partnerID=40&md5=3523a895714638e5145e73244498c8b8https://scholars.lib.ntu.edu.tw/handle/123456789/456527journal article10.1016/S0167-9236(03)00028-92-s2.0-1242287862