Changes in form, mobility and availability of some heavy metals in a soil with long-term applications of sewage sludge.

@inproceedings{Okamoto1990ChangesIF,
  title={Changes in form, mobility and availability of some heavy metals in a soil with long-term applications of sewage sludge.},
  author={Tosiyuki Okamoto and Masato Hirobe and K. Wachi and Toshihide Matsuzaki},
  year={1990}
}