@article {5127,
	title = {Statistical mechanics of RNA folding: Importance of alphabet size},
	journal = {Physical Review E - Statistical, Nonlinear, and Soft Matter Physics},
	year = {2003},
	pages = {419041-419045},
	url = {http://www.ncbi.nlm.nih.gov/pubmed/14682970},
	author = {Ranjan Mukhopadhyay and Eldon Emberly and Chao Tang and Ned S. Wingreen}
}
