Looking Back, Looking Forward

References 

1. ICRP . 1990 Recommendations of the International Commission on Radiological Protection. ICRP Publication 60. Ann. ICRP. 1991;21(1–3):
2. ICRP . The 2007 Recommendations of the International Commission on Radiological Protection. ICRP Publication 103. Ann. ICRP. 2007;37(2–4):
3. IXRPC . International Recommendations for X-ray and Radium Protection. Stockholm. P.A. Norstedt & Söner; 1929;