@book{ international1968iaea, title={Biophysical Aspects of Radiation Quality, Second Panel Report}, series={Panel Proceedings Series}, year={1968}, isbn={92-0-011068-1}, url={http://www.dgdingfa.net/publications/2130/biophysical-aspects-of-radiation-quality-second-panel-report}, publisher={INTERNATIONAL ATOMIC ENERGY AGENCY}, address={Vienna} }