1. European Union. (2013). Council Directive 2013/51/ Euratom of 22 October 2013 laying down requirements for the protection of the health of the general public with regard to radioactive substances in water intended for human consumption. Official Journal of the European Union, 7.11.2013, L 296/2012.
2. Official Gazette of the Republic of Croatia. (2009). Law on water for human consumption. Consolidated Laws No. 56/2013, 64/2015, 104/2017. (in Croatian).
3. Marovic, G., Avdic, M., Babić, D., Bituh, T., Branica, G., Franic, Z., Franulovic, I., Kolar, M., Petrinec, B., Petroci, Lj., Sencar, J., Skoko, B., & Sostaric, M. (1988–2018). Results of environmental radioactivity measurements in the Republic of Croatia 1987–2018. Zagreb: IMI. (IMI-CRZ-98).
4. International Atomic Energy Agency. (1989). Measurement of radionuclides in food and the environment. A guidebook. Vienna: IAEA. (Technical Reports Series no. 295).
7. Franic, Z., Marovic, G., Petrinec, B., & Branica, G. (2017). Post-Chernobyl investigations of radiocesium activity concentrations in cistern waters along the Croatian coast of the Adriatic Sea. Health Phys., 113(3), 167–174. DOI: 10.1097/HP.0000000000000685.10.1097/HP.000000000000068528749807
8. European Union. (1996). Council Directive 96/29/ Euratom of 13 May 1996 laying down basic safety standards for the protection of the health workers and the general public against the dangers arising from ionizing radiation. Official Journal of the European Union, L 159/1996.
9. International Atomic Energy Agency. (2014). Radiation protection and safety of radiation sources: International basic safety standards. Vienna: IAEA. (Safety Standards Series No. GSR Part 3).
10. International Atomic Energy Agency. (2006). Environmental consequences of the Chernobyl accident and their remediation: twenty years of experience. Vienna: IAEA.
12. Franic, Z., Sega, K., Petrinec, B., & Marovic, G. (2009). Long-term investigations of post-Chernobyl radiocaesium in fallout and air in North Croatia. Environ. Monit. Assess., 148(1), 315–323. DOI: 10.1007/s10661-008-0162-4.10.1007/s10661-008-0162-418278563
13. United Nations Scientific Committee on the Effects of Atomic Radiation. (1982). Ionizing radiation: Sources and biological effects. New York: United Nations.
14. Risica, S., & Grande, S. (2000). Council Directive 98/83/EC on the quality of water intended for human consumption: Calculation of derived activity concentrations. Rome: Istituto di Superiore di Sanitas. (ISTISAN Report 00/16).