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JOURNAL OF PHYSICAL CHEMISTRY C, vol. 112, no. 30, page. 11324 - 11330, 2008-07-31
JOURNAL OF CRYSTAL GROWTH, vol. 310, no. 12, page. 3049 - 3054, 2008-06-01
ADVANCED FUNCTIONAL MATERIALS, vol. 18, no. 4, page. 560 - 565, 2008-02-22