Болатхан К., Какимова А.Б., Заядан Б.К, У.А.Б.А.К.Б.Р.К. 2019. Effects of various CO 2 concentrations on the productivity of cyanobacterial strains. Eurasian Journal of Ecology. 61, 4 (Dec. 2019), 72–79. DOI:https://doi.org/10.26577/EJE.2019.v61.i4.08.