@article {10405,
	title = {Na Adsorption on the Si(111)-(7 {\texttimes} 7) Surface: From Two-Dimensional Gas to Nanocluster Array},
	journal = {Physical Review Letters},
	year = {2003},
	pages = {1261011-1261014},
	url = {http://www.ncbi.nlm.nih.gov/pubmed/14525375},
	author = {Kehui Wu and Y. Fujikawa and T. Nagao and Y. Hasegawa and K.S. Nakayama and Q.K. Xue and E.G. Wang and T. Briere and V. Kumar and Y. Kawazoe and S.B. Zhang and T. Sakurai}
}
