@article {507051,
	title = {Codon Usage and Selection on Proteins},
	journal = {Journal of Molecular Evolution},
	volume = {63},
	year = {2006},
	pages = {635-653},
	url = {http://www.oeb.harvard.edu/faculty/desai/PDFs/plotkinsdushoffdesaifraser06a.pdf},
	author = {Plotkin, JB and Dushoff, J and Desai, MM and Fraser, HB}
}
