@misc{indiciae5639c8f195d7,
  title = {Trends in nutrients},
  author = {A.L. Heathwaite and P.J. Johnes and N.E. Peters},
  year = {1996},
  doi = {10.1002/(sici)1099-1085(199602)10:2<263::aid-hyp441>3.0.co;2-k},
  url = {https://pubs.usgs.gov/publication/70019344},
  note = {Source identifier: 70019344}
}