Ko, Dae-Hoon; Lee, Sang-Kon; Kwon, Yong-Nam; Kim, Sang-Woo; Kim, Bong-Hwan; Kimi, Byung-Min; Ko, Dae-Cheol
ArticleIssue Date2012CitationINTERNATIONAL JOURNAL OF PRECISION ENGINEERING AND MANUFACTURING, v.13, no.2, pp 237 - 243PublisherKOREAN SOC PRECISION ENG