@book{ international1991iaea, title={Organization and Training in Radiotherapy for Developing Countries in Africa (Proceedings of a Regional Seminar, Cairo, 11-15 December 1989)}, series={TECDOC Series}, number={614}, year={1991}, url={http://www.dgdingfa.net/publications/870/organization-and-training-in-radiotherapy-for-developing-countries-in-africa-proceedings-of-a-regional-seminar-cairo-11-15-december-1989}, publisher={INTERNATIONAL ATOMIC ENERGY AGENCY}, address={Vienna} }