1. PHYSICAL REVIEW B,,,Vol.68,
2. PHYSICAL REVIEW B,,,Vol.69,
3.PHYSICAL REVIEW B,,,,
4. JOURNAL OF COMPUTATIONAL CHEMISTRY,,,Vol.26 ,
5.PHYSICAL REVIEW B,,,Vol.65,
6.PHYSICAL REVIEW B,,,Vol.76,
7.APPL.SURF.SCI,,,,
8.NANOTECHNOLOGY,,,,
9.NANOTECHNOLOGY,,,,
10.PHYSICAL REVIEW A,,, Vol.79,