@book{ international1999iaea, title={Critical Groups and Biospheres in the Context of Radioactive Waste Disposal}, series={TECDOC Series}, number={1077}, year={1999}, url={https://www.iaea.org/publications/5370/critical-groups-and-biospheres-in-the-context-of-radioactive-waste-disposal}, publisher={INTERNATIONAL ATOMIC ENERGY AGENCY}, address={Vienna} }