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JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B, vol. 26, no. 6, page. 1933 - 1936, 2008-11
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, vol. 8, no. 2, page. 623 - 627, 2008-02
SURFACE REVIEW AND LETTERS, vol. 14, no. 6, page. 1061 - 1065, 2007-12