TY JOUR TI Determination of photobiosynthesis efficiency in various density Spirulina (Arthrospira) Platensis culture KW Buger-Lambert-Beer law KW energy absorption coefficient KW caloric value of biomass JO Russian Journal of Biological Physics and Chemisrty AU Chekushkin, A.A. AU Lelekov, A.S. PY 2017 IS 2 PB Federal State Educational Institution of Higher Education Sevastopol State University