JOURNAL OF ELECTRONIC MATERIALS, vol. 38, no. 7, page. 1127 - 1131, 2009-07
JOURNAL OF APPLIED PHYSICS, vol. 105, no. 7, 2009-04-01
PHYSICAL REVIEW B, vol. 77, no. 3, 2008-01
PHYSICA STATUS SOLIDI B-BASIC RESEARCH, vol. 241, no. 7, page. 1577 - 1580, 2004-06
PHYSICAL REVIEW B, vol. 69, no. 10, 2004-03