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OPTICAL MATERIALS, vol. 21, no. 1-3, page. 673 - 678, 2003-01

OPTICAL MATERIALS, vol. 30, no. 3, page. 486 - 491, 2007-11

OPTICAL MATERIALS, vol. 27, no. 8, page. 1410 - 1414, 2005-05

OPTICAL MATERIALS, vol. 21, no. 1-3, page. 187 - 190, 2003-01

OPTICAL MATERIALS, vol. 21, no. 1-3, page. 169 - 173, 2003-01