1. EC COUNCILE DIRECTIVE 2013/59 EURATOM of 5 December 2013 laying down basic safety standards for protection against the dangers arising from exposure to ionizing radiations, and repealing Directives 89/618/Euratom, 90/641/Euratom, 96/29/Euratom, 97/43/Euratom and 2003/122/Euratom.
https://eur-lex.europa.eu/legal-content/EN/TXT/PDF/?uri=CELEX:32013L0059&from=EN
2. International Atomic Energy Agency (2014) IAEA Basic safety standards for protecting people and environment. Radiation protection and safety of radiation sources: international basic safety standards. General Safety Requirements Part 3.
https://www-pub.iaea.org/MTCD/publications/PDF/Pub1578_web-57265295.pdf
3. Organisation for Economic Co-operation and Development (OECD).
http://www.oecd.org/
4. Compagnone G, Angelini P, Domenichelli S (2012) Radiation doses to the population of the Emilia-Romagna region from medical exposures. Radiol Med 117(2):312–321
5. Colagrande S, Origgi D, Zatelli G, Giovagnoni A, Salerno S (2014) CT exposure in adult and paediatric patients: a review of the mechanisms of damage, relative dose and consequent possible risks. Radiol Med 119(10):803–810