Y. M. Kim, D. Park, D. S. Lee and J. M. Park, “Instability of Biological Nitrogen Removal in a Cokes Wastewater Treatment Facility during Summer,” Journal of Hazardous Materials, Vol. 141, No. 1, 2007, pp. 27-32. doi:10.1016/j.jhazmat.2006.06.074
 M. A. Dytczak, K. L. Londry and J. A. Oleszkiewicz, “Activated Sludge Operational Regime Has Significant Impact on the Type of Nitrifying Community and Its Nitrification Rates,” Water Research, Vol. 42, No. 8-9, 2008, pp. 2320-2328. doi:10.1016/j.watres.2007.12.018
 C. A. Du Plessis, P. Barnard, R. M. Muhlbauer and K. Naldrett, “Empirical Model for the Autotrophic Biodegradation of Thiocyanate in an Activated Sludge Reactor,” Letters in Applied Microbiology, Vol. 32, No. 2, 2001, pp. 103-107.
 C. Staib and P. Lant, “Thiocyanate Degradation during Activated Sludge Treatment of Cock-Ovens Wastewater,” Biochemical Engineering Journal, Vol. 34, No. 2, 2007, pp. 122-130. doi:10.1016/j.bej.2006.11.029
 S. Suntud, C. Kanidta and S. Pattama, “Some Properties of a sequencing Batch Reactor for Treatment of Wastewater Containing Thiocyanate Compounds,” Journal of Environmental Management, Vol. 85, No. 2, 2007, pp. 330-337. doi:10.1016/j.jenvman.2006.09.016