005450000a22001570004500003000900000005001700009245015000026020001800176264005800194490003100252300000900283041000800292650001400300650002500314700004800339PH-MaWHO20241108112233.0 4aThe safe management of sources of radiation : principles and strategies : INSAG-11 : a report by the International Nuclear Safety Advisory Group. a92-0-102199-2 aVienna : bInternational Atomic energy Agency,c1999. a(INSAG series ; INSAG-11). a27p. aeng aRadiation aRadiation protection aInternational Nuclear Safety Advisory Group