APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, vol. 69, no. 6, page. 625 - 630, 1999-12
APPLIED SURFACE SCIENCE, vol. 173, no. 1-2, page. 22 - 29, 2001-03-22
JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA, vol. 103, page. 327 - 333, 1999-06
SURFACE REVIEW AND LETTERS, vol. 9, no. 1, page. 285 - 291, 2002-02
PROCEEDINGS OF THE AMERICAN MATHEMATICAL SOCIETY, vol. 139, no. 3, page. 787 - 797, 2011-03