@book{ international1964iaea, title={Industrial Uses of Large Radiation Sources (Salzburg, 27-31 May 1963)}, series={Proceedings Series}, year={1964}, isbn={92-0-060263-0}, url={http://www.dgdingfa.net/publications/2012/industrial-uses-of-large-radiation-sources-salzburg-27-31-may-1963}, publisher={INTERNATIONAL ATOMIC ENERGY AGENCY}, address={Vienna} }