Hoa, T., N. Hanh, N. Lien, and T. Watanabe. “EVALUATION OF THE AMMONIUM REMOVAL CAPABILITIES OF ANAMMOX SLUDGE IN A FIXED BED REACTOR USING FELIBENDY CUBES AS BIOMASS CARRIER”. Journal of Science and Technology in Civil Engineering (JSTCE) - HUCE, Vol. 10, no. 5, Oct. 2016, pp. 127-33, https://stce.huce.edu.vn/index.php/en/article/view/305.