@article{Panchelyuga2021on, author={Panchelyuga, V.A. and Panchelyuga, M.S.}, title={On possible external nature of circahoralian periods spectra}, journal={Russian Journal of Biological Physics and Chemisrty}, publisher={Federal State Educational Institution of Higher Education Sevastopol State University}, year={2021}, pages={393-399}, volume={6}, issue={3}, }