1. Roles and responsibilities, and education and training requirements for clinically qualified medical physicists, International Atomic Energy Agency, Vienna, Austria (2013) https://www-pub.iaea.org/MTCD/Publications/PDF/Pub1610_web.pdf.
2. https://www.astro.org/About-ASTRO/History/A-Historical-Timeline.
3. Three decades of ESTRO; a vision for cancer cure. https://estro.org/ESTRO/media/ESTRO/About/estro-book-final-version-copy.pdf.
4. www.aapm.org.
5. EFOMP Policy Statement 1: Medical Physics Education and Training: The present European Level and Recommendations for its Future Development, 1984. https://www.efomp.org/uploads/policy_statement_nr_1.pdf.