Wu, Q.S.Q.S.WuChao, K.M.K.M.ChaoLee, R.C.T.R.C.T.LeeKUN-MA0 CHAO2018-09-102018-09-101998http://www.scopus.com/inward/record.url?eid=2-s2.0-0041856198&partnerID=MN8TOARShttp://scholars.lib.ntu.edu.tw/handle/123456789/339645The NPO-completeness of the longest Hamiltonian cycle problemjournal article10.1016/S0020-0190(98)00003-9