Фосфор: грядущий кризис, литература
Phosphorus in the Environment: Natural Flows and Human Interferences. Vaclav Smil in Annual Review of Energy and the Environment, Vol. 25, pages 53-88; November 2000.
Eutrophication of Lakes Cannot Be Controlled by Reducing Nitrogen Input: Results of a 37-Year Whole-Ecosystem Experiment. David W. Schindler et al. in Proceedings of the National Academy of Sciences USA, Vol. 105, No. 32, pages 11254-11258; August 12, 2008.
Phosphate Rock Statistics and Information. U.S. Geological Survey.