Karapetyan, M.A., et al. “INFLUENCE OF $Trifolium~pratence$ L. ON RESPIRATION IN HYPOXIA”. Proceedings of the YSU B: Chemical and Biological Sciences, vol. 45, no. 2 (225), May 2011, pp. 39-44, doi:10.46991/PYSU:B/2011.45.2.039.