17. T w . Rivera, "Stronti um-9O ini ae be hee an Verte h wa rae, Stay a ameb sy 19 ICRP at {+} Peoblicati on 10 (1968). 20, Rerort re / rc ICRP Publicatisc . ic ¥ _ _ Yor 5 ical (i) ay ~~ > ahs 2c . Mower ae NE Tt Neem ae Le 3 ta 23. Ne) (196€). ry, fm —- re -is