Sharp, P. M., Bailes, E., Grocock, R. J., Peden, J. F., & Sockett, R. E. (2005). Variation in the strength of selected codon usage bias among bacteria. Oxford University Press.

Sharp, Paul M., Elizabeth Bailes, Russell J. Grocock, John F. Peden, e R. Elizabeth Sockett. Variation in the Strength of Selected Codon Usage Bias Among Bacteria. Oxford University Press, 2005.

Sharp, Paul M., et al. Variation in the Strength of Selected Codon Usage Bias Among Bacteria. Oxford University Press, 2005.