[2] Jurdlk E. Laser manipulation of atoms and nanofabrication [D].Katholieke University 2001.

[3] Dale H. The programs of the Manufacturing Engineering Laboratory at NIST,Gaithersburg [R].MD 20899-8200,2003.

[4] Koenders L. WGDM-7 Preliminary Comparison on Nanometrology: Nano2-step Height Standards Report [R].PTB Braunschweig,2003.4