Reid, S. W., Leake, M. C., Chandler, J. H., Lo, C., Armitage, J. P., & Berry, R. M. (2006). The maximum number of torque-generating units in the flagellar motor of Escherichia coli is at least 11. National Academy of Sciences.

Reid, Stuart W., Mark C. Leake, Jennifer H. Chandler, Chien-Jung Lo, Judith P. Armitage, et Richard M. Berry. The Maximum Number of Torque-generating Units in the Flagellar Motor of Escherichia Coli Is At Least 11. National Academy of Sciences, 2006.

Reid, Stuart W., et al. The Maximum Number of Torque-generating Units in the Flagellar Motor of Escherichia Coli Is At Least 11. National Academy of Sciences, 2006.