Multi-level Access Control for GeoContents. - Sun Rae Park; Jong-Suk Ruth Lee; Kumwon Cho; Kyu-Chul Lee (FGIT-CA/CES3, 2011)

A Ubiquitous Smart Learning Platform for the 21st Smart Learners in an Advanced Science and Engineering Education. - Jong-Suk Ruth Lee; Young Jin Jung; Sun Rae Park; Junglok Yu; Du-Seok Jin; Kumwon Cho (NBiS, 2012)

Intelligent u-Learning and Research Environment for Computational Science on Mobile Device. - Sun Rae Park; Du-Seok Jin; Jong-Suk Ruth Lee; Kumwon Cho; Kyu-Chul Lee (KSII Trans. Internet Inf. Syst., 2014)