@article{Nazarov2018investigation, author={Nazarov, S.B. and Rogova, O.V. and Khalaimova, A.V.}, title={INVESTIGATION OF LONG-TERM CHANGES IN THE LEVEL OF SKY ILLUMINATION AS AN ENVIRONMENTAL FACTOR}, journal={Russian Journal of Biological Physics and Chemisrty}, publisher={Federal State Educational Institution of Higher Education Sevastopol State University}, year={2018}, pages={913-920}, volume={3}, issue={4}, }