Wendong Tao,  Investigation into Heterotrophic Activities and Algal Biomass in Surface Flow Stormwater Wetlands.   journal   = {International Journal of Environmental and Ecological Engineering}, [online]. World Academy of Science, Engineering and Technology.
    January 2010, vol. 37(1). 19 - 22
    [viewed 22 October 2019]. Available from: https://publications.waset.org/pdf/6156.