JOURNAL OF APPLIED PHYSICS, vol. 96, no. 10, page. 5496 - 5499, 2004-11-15
JOURNAL OF APPLIED PHYSICS, vol. 96, no. 8, page. 4122 - 4125, 2004-10-15
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, vol. 43, no. 8A, page. 5199 - 5203, 2004-08
VACUUM, vol. 74, no. 3-4, page. 423 - 430, 2004-06-07
CHEMICAL PHYSICS LETTERS, vol. 388, no. 1-3, page. 170 - 174, 2004-04-11