Nash, David M., Haywarth, Philip M., Turner, Benjamin L., Condron, Leo M., McDowell, Richard W., Richardson, Alan E., Watkins, Mark, and Heaven, Michael W. 2014. "Using organic phosphorus to sustain pasture productivity: A perspective." Geoderma. 221-222:11–19. https://doi.org/10.1016/j.geoderma.2013.12.004