Proposal of Secure VoIP System Using Attribute Certificate. - Jin-Mook Kim; Young-Ae Jeong; Seong-Sik Hong (SUComS, 2010)

An Effective Resource Managements Method Using Cluster-Computing for Cloud Services. - Seong-Sik Hong; Jin-Mook Kim (FGIT-FGCN (2), 2011)