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- 20:21, 23 August 2012 JaeJin (Talk | contribs) uploaded a new version of "File:20120804.JJLEE.pdf" (Prism coupling method for determining refractive index and thickness)
- 20:20, 23 August 2012 JaeJin (Talk | contribs) uploaded "File:20120804.JJLEE.pdf" (Prism coupling method for determining refractive index and thickness )