1. 1. Law of Ukraine "On the Legal Regime of the Territory Suffered from Radioactive Contamination as a Result of the Chornobyl Accident" of February 27, 1991, No. 791a-XII. Vidomosti Verkhovnoyi Rady URSR 16 (1991) Art. 198. (Ukr) https://zakon.rada.gov.ua/laws/show/791%D0%B0-12
2. 2. State hygienic standards. Permissible levels of 137Cs and 90Sr radionuclides in food and drinking water. Hygienic standard. ГН 6.6.1.1-130-2006. Ofitsiynyy visnyk Ukrayiny 29 (2006) 142. (Ukr) https://zakon.rada.gov.ua/laws/show/z0845-06#Text
3. 3. Yu.V. Khomutinin, V.A. Kashparov, E.I. Zhebrovskaya. Optimization of Sampling and Measurements of Samples during Radioecological Monitoring (Kyiv: VIPOL, 2001) 160 p. (Rus) https://www.researchgate.net/publication/291333135_Optimizacia_otbora_i_izmerenij_prob_pri_radioekologiceskom_monitoringe_Monografia
4. 4. Yu.V. Khomutinin. Optimization of sampling for assessment of contamination density by local territory radionuclides. Yaderna Fizyka ta Energetyka (Nucl. Phys. At. Energy) 1(9) (2003) 145. (Rus) http://jnpae.kinr.kiev.ua/04.1/Articles_PDF/jnpae-2003-04-1-145.pdf
5. 5. Yu.V. Khomutinin, S.E. Levchuk, V.V. Pavlyuchenko. Optimization of soil sampling in the mapping of radioactive fallout density. Visnyk Zhytomyrskoho Universytetu 3 (1) (55) (2016) 74. (Ukr)