@misc{indiciae7712dfb8d2c7,
  title = {Nitrogen losses from dairy manure estimated through nitrogen mass balance and chemical markers},
  author = {Alexander N. Hristov and S. Zaman and M. Vander Pol and P. Ndegwa and L. Campbell and S. Silva},
  year = {2009},
  doi = {10.2134/jeq2009.0057},
  url = {https://pubs.usgs.gov/publication/70035822},
  note = {Source identifier: 70035822}
}