Strauss, E. A., Richardson, W. B., Bartsch, L. A., Cavanaugh, J. C., Brusewitz, D.
A., Imker, H., Heinz, J. A., and Soballe, D. M., 2004, Nitrification in the Upper
Mississippi River: patterns, controls, and contribution to the nitrate budget:
Journal of the North American Benthological Society, v. 14, p. 1 14.