WASET
    J. K. Choi  and  D. W. Kim and  H. S. Shin and  H. J. Yeon and  B. K. Kim and  Yeon. Fan and  D. Chang and  S. B. Han and  J.M. Hur and  B. R. Jung and  S. M. Park,  Internal Behavior of Biological Nutrient Removal System for Advanced Wastewater Treatment.   journal   = {International Journal of Environmental and Ecological Engineering}, [online]. World Academy of Science, Engineering and Technology.
    December 2011, vol. 60(12). 884 - 886
    [viewed 29 March 2024]. Available from: https://publications.waset.org/pdf/8010.