@article {5120,
	title = {Are protein folds atypical?},
	journal = {Proceedings of the National Academy of Sciences of the United States of America},
	year = {1998},
	pages = {4987-4990},
	doi = {10.1073/pnas.95.9.4987},
	url = {http://www.ncbi.nlm.nih.gov/pubmed/9560215},
	author = {Hao Li and Chao Tang and Ned S. Wingreen}
}
