FRANK LEIGH LUWang P.-J.Teng R.-J.Yau K.-I.T.2020-12-082020-12-0819980887-8994https://www.scopus.com/inward/record.uri?eid=2-s2.0-0032169140&doi=10.1016%2fS0887-8994%2898%2900046-0&partnerID=40&md5=ac55ca90964997c29313fce114d946f5https://scholars.lib.ntu.edu.tw/handle/123456789/524971journal article10.1016/S0887-8994(98)00046-098061442-s2.0-0032169140