• Brasseur, G. P., J. J. Orlando, and G. S. Tyndall, Atmospheric Chemistry and Global Change, 654, Oxford Univ. Press, New York., 1999.
  • Galloway, J. N., et al., itrogen cycles: Past, present, and future, Biogeochemistry, 702, 15322610.1007/s10533-004-0370-0, 2004.
  • Howarth, R., R. Marino, and D. Scavia, Priority topics for nutrient pollution in coastal waters: An integrated national research program for the United States, 124, NOAA Natl. Ocean Serv., Silver Spring, Md., 2003.
  • Rabalais, N. N., Nitrogen in aquatic ecosystems, Ambio, 312, 102112, 2002.
  • Townsend, A. R., R. W. Howarth, M. S. Booth, C. C. Cleveland, S. K. Collinge, A. P. Dobson, P. R. Epstein, E. A. Holland, D. R. Keeny, and M. A. Malin, Human health effects of a changing global nitrogen cycle, Frontiers Ecol., 15, 240246, 2003.
  • Vitousek, P. M., J. D. Aber, R. W. Howarth, G. E. Likens, P. A. Matson, D. W. Schindler, W. H. Schlesinger, and D. Tilman, Human alteration of the global nitrogen cycle: Sources and consequences, Ecol. Appl., 7, 737750, 1997a.
  • Vitousek, P. M., H. A. Mooney, J. Lubchenco, and J. M. Melillo, Human domination of Earth's ecosystems, Science, 25277, 494499, 1997b.