PHYSICAL REVIEW B, vol. 80, no. 20, page. 205112 - 205112, 2009-11
PHYSICAL REVIEW B, vol. 80, no. 4, 2009-07
PHYSICAL REVIEW B, vol. 76, no. 19, 2007-11
JOURNAL OF PHYSICS-CONDENSED MATTER, vol. 18, no. 31, page. 7413 - 7426, 2006-08-09
PHYSICAL REVIEW B, vol. 73, no. 13, 2006-04
JOURNAL OF PHYSICS-CONDENSED MATTER, vol. 16, no. 50, page. 9163 - 9168, 2004-12-22
PHYSICAL REVIEW B, vol. 69, no. 3, 2004-01
PHYSICA B-CONDENSED MATTER, vol. 328, no. 1-2, page. 15 - 19, 2003-04