VARDANYAN, V.P.; SARDARYAN, A.S. IMPACT OF NATURAL AND ANTHROPOGENIC RADIOACTIVE SOURCES ON POLLUTION OF THE ENVIRONMENT. Proceedings of the YSU C: Geological and Geographical Sciences, Yerevan, Armenia, v. 49, n. 1 (236), p. 31–35, 2015. DOI: 10.46991/PYSU:C/2015.49.1.031. Disponível em: https://journals.ysu.am/index.php/proceedings-geol-geogr/article/view/vol49_no1_2015_pp031-035. Acesso em: 22 jul. 2024.