Chen J, Zhang Z, Ren L, Liu Y, Liang P. Effect of the Different COD/N Ratios on Multilevel Anaerobic/oxic Step-Feed Process for Integrated Removal of Carbon, Nitrogen and Phosphorus. ajc [Internet]. 2012 Sep. 10 [cited 2024 Jul. 3];25(2):1098-102. Available from: https://asianpubs.org/index.php/ajchem/article/view/25_2_116