Jy S. Wu Langley, W. G., Wu, J. S., & Chao, A. C. (2001). Reaction kinetics of immobilized-cell denitrification. I: Background and model development. Journal of Environmental Engineering (New York, N.Y.), 127(8), 682–688. Wu, J. S., Langley, W. G., & Chao, A. C. (2001). Reaction kinetics of immobilized-cell denitrification. II: Experimental study. Journal of Environmental Engineering (New York, N.Y.), 127(8), 689–697. https://doi.org/10.1061/(asce)0733-9372(2001)127:8(689) Wu, J. S., Holman, R. E., & Dorney, J. R. (1997). Systematic evaluation of pollutant removal by urban wet detention ponds: Closure. Journal of Environmental Engineering (New York, N.Y.), 123(11), 1167.