参考文献

Postech Academy-industry Foundation; SHIN, Seung Koo; YOON, Hye Joo; JUNG, Yong Sik; LEE, Hee Yoon; SUH, Min Soo; SEO, Jong Cheol Patent: EP2610243 A2, 2013 ; Location in patent: Paragraph 0094; 0095 ;