Berestyana, A. and Grodzinsky, D. 2025. Changes of the ribonuclease activity of cotyledon leaves of Linum usitatissimum irradiated by UV-B radiation and X-rays in aging . Reports of the National Academy of Sciences of Ukraine. 6 (Mar. 2025), 142–151. DOI:https://doi.org/10.15407/dopovidi2014.12.142.