@article {9035,
	title = {A free-rotating and self-avoiding chain model for deriving statistical potentials based on protein structures},
	journal = {Biophysical Journal},
	year = {2007},
	pages = {3868-3877},
	doi = {10.1529/biophysj.106.102152},
	url = {http://www.ncbi.nlm.nih.gov/pubmed/17351015},
	author = {Ji Cheng and Jianfeng Pei and Luhua Lai}
}
