Phytoplankton chlorophyll a in Lake Poyang and its tributaries during dry, mid-dry and wet seasons: a 4-year studyZ. Wu, X. Lai, L. Zhang, Y. Cai and Y. ChenKnowl. Managt. Aquatic Ecosyst., 412 (2014) 06DOI: https://doi.org/10.1051/kmae/2013088