Kim, HT; Kim, IJ; Tosa, V; Kim, CM; Park, JJ; Lee, YS; Bartnik, A; et al, IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS, v.10, pp.1329 - 1338, 2004-11
Kim, Kyung-Taec; Kang, Kyung Sik; Park, Mi Na; Imran, Tayyab; Zhu, Changjun; Nam, Chang Hee; Krishnakumar, E.; et al, JOURNAL OF THE KOREAN PHYSICAL SOCIETY, v.49, no.1, pp.309 - 313, 2006-07