TSIU-KWEN LEESheu, A.J.-L.A.J.-L.Sheu2018-09-102018-09-102013http://www.scopus.com/inward/record.url?eid=2-s2.0-84893152723&partnerID=MN8TOARShttp://scholars.lib.ntu.edu.tw/handle/123456789/377518Quasi multiplication and k-groupsjournal article10.1017/S14467887120005842-s2.0-84893152723WOS:000324392000008