TY JOUR TI About of the Necessary of Corrections of the NRB-99/2009 and OSPORB-99/2010 KW radionuclide contamination KW materials KW wastes KW specific activity KW public exposure JO Medical Radiology and radiation safety AU Serebryakov, B.E. PY 2020 IS 65 PB Federal Medical Biological Agency of Russia