@misc{indiciae6136815c7fc2,
  title = {Determination of phosphate in natural waters by activation analysis of tungstophosphoric acid},
  author = {Herbert E. Allen and Richard B. Hahn},
  year = {2002},
  doi = {10.1021/es60032a005},
  url = {https://pubs.usgs.gov/publication/70006502},
  note = {Source identifier: 70006502}
}