Zeng, G., Zhou, J., Huang, T., Liu, S., Ji, F., & Wang, P. (2014). Extraction of Chlorophyll-a from Eutrophic Water by Repeated Freezing and Thawing-Extraction Method. Asian Journal of Chemistry, 26(8), 2289–2292. https://doi.org/10.14233/ajchem.2014.15700