@book{
  international2007iaea,
  title={Management Practices for Improving Sustainable Crop Production in Tropical Acid Soils},
  series={Proceedings Series},
  year={2007},
  isbn={92-0-115206-X},
  url={https://www.iaea.org/publications/7603/management-practices-for-improving-sustainable-crop-production-in-tropical-acid-soils},
  publisher={INTERNATIONAL ATOMIC ENERGY AGENCY},
  address={Vienna}
}