@article {22121,
	title = {A fast and practical method to pack spheres for mesh generation},
	journal = {Acta Mechanica Sinica},
	volume = {24},
	number = {4},
	year = {2008},
	pages = {439-447},
	isbn = {0567-7718},
	author = {Liu, Jianfei and Shuixiang Li and Yongqiang Chen}
}
