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Optik - International Journal for Light and Electron Optics > 2013 > 124 > 21 > 5089-5094
Thin Solid Films > 2012 > 520 > 7 > 2683-2688
Optik - International Journal for Light and Electron Optics > 2013 > 124 > 21 > 5089-5094
Thin Solid Films > 2012 > 520 > 7 > 2683-2688