XIAO-GANG HEGuey-Lin Lin2019-12-272019-12-272017https://scholars.lib.ntu.edu.tw/handle/123456789/442954B → η′X <inf>s</inf> in the standard modeljournal article10.1016/S0370-2693(99)00302-02-s2.0-0000674303https://www.scopus.com/inward/record.uri?eid=2-s2.0-0000674303&doi=10.1016%2fS0370-2693%2899%2900302-0&partnerID=40&md5=e296f13a6575c2294633d46b2fc9a047