GERARD JENNHWA CHANG2018-09-102018-09-102008http://www.scopus.com/inward/record.url?eid=2-s2.0-42649134148&partnerID=MN8TOARShttp://scholars.lib.ntu.edu.tw/handle/123456789/337556The upper bound on k-tuple domination numbers of graphsjournal article10.1016/j.ejc.2007.05.009