WEI-SHU HOUGwo-Guang Wong2019-12-272019-12-271994https://scholars.lib.ntu.edu.tw/handle/123456789/442847journal article10.1016/0370-2693(94)91141-X2-s2.0-13844299521https://www.scopus.com/inward/record.uri?eid=2-s2.0-13844299521&doi=10.1016%2f0370-2693%2894%2991141-X&partnerID=40&md5=e3ce7dbc617dbb497b15f879574d34f3