参考文献:
Ahn, Sung Oh Park, Chan Hee Im, Jun Hwan Lee, Soon Ok Lee, Kyoung June Cho, Seong Wook Ko, Kwang Seok Han, Sun Young Lee, Won Il Patent: US2/28467 A, 2 Location in patent: Page/Page column 4 US 228467 A
参考文献:
Lim, Jae-Min Gam, Gyunghee Kim, Shin-Hyuong Shin, Dong-Soo Jang, Kiwan Journal of the Korean Chemical Society, 22 , vol. 56, # 4 p. 468 - 472,5 Title/Abstract Full Text Show Details Lim, Jae-Min Gam, Gyunghee Kim, Shin-Hyuong Jang, Kiwan Shin, Dong-Soo Journal of the Korean Chemical Society, 22 , vol. 56, # 4 p. 468 - 472