Yakshin, A. E., Kozhevnikov, I. V., Zoethout, E., Louis, E., & Bijkerk, F. (2010). Properties of broadband depth-graded multilayer mirrors for EUV optical systems. Optics Express, 18, 6957-6971. Retrieved from <Go to ISI>://000276602000050 (Original work published 2010)
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