@article {9872,
	title = {Bloch waves and bloch bands of Bose-Einstein condensates in optical lattices},
	journal = {Physical Review A. Atomic, Molecular, and Optical Physics},
	year = {2002},
	pages = {025601/1-025601/4},
	author = {Biao Wu and Roberto B. Diener and Qian Niu}
}
