@book{
  international2007iaea,
  title={Soils Newsletter Vol. 29, No. 2, December 2006},
  series={Soils Newsletter},
  year={2007},
  url={https://www.iaea.org/publications/7732/soils-newsletter-vol-29-no-2-december-2006},
  publisher={INTERNATIONAL ATOMIC ENERGY AGENCY},
  address={Vienna}
}