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1 Shams, D. F., "Treatment of farm dairy effluent with hybrid upflow multilayer bioreactor and activated sludge module" 61 (61): 1683-1690, 2010
2 Gujer W., "The activated sludge model No.2: biological phosphorus removal" 31 (31): 1-12, 1995
3 Joong-Won Lee, "Sequential modelling of a full-scale wastewater treatment plant using an artificial neural network" Springer Science and Business Media LLC 34 (34): 963-973, 2011
4 Park, J. B., "Potential of the Korean KNR® system for wastewater treatment in New Zealand" 159 (159): 15-18, 2009
5 An, J. Y., "Performance of a full-scale biofilm system retrofitted with an upflow multi-layer bioreactor as a preanoxic reactor for advanced wastewater treatment" Water Environment Research 2008
6 Kwon, J. C., "Nutrient removal using the simple dual sludge system with an UMBR (Upflow Multi-layer Bio-Reactor) and aerobic biofilm reactor for small sewage treatment" 2004
7 Shin, H. S., "Nutrient removal using UMBR system. Presentation in Ministry of Environment" 2006
8 Kwon, J. C., "Nitrogen and phosphorus removal of pilot scale plant using UMBR(upflow multi-layer bioreactor)as anaerobic/anoxic reactor" 11-15, 2003
9 Hopcrofit, J. E., "Languages and Computation" Addison-Wesley 1979
10 Chomsky, N., "Knowledge of Language: Its Nature, Origin and Use" Preager 1986
11 백병천 ; 권중천 ; 이응택 ; 김철규 ; 김태령, "KNR 공법을 이용한 음식물폐수 혐기성 소화액의 유기물 및 질소제거" 한국도시환경학회 12 (12): 229-237, 2012
12 백병천 ; 권중천 ; 김철규, "KNR 공법을 이용한 가축분뇨 혐기성 소화액의 고품질 액비 생산" 한국도시환경학회 17 (17): 1-9, 2017
13 Whigham, P. A., "Inductive bias and genetic programming" GALESIA, The Institute of Electrical Engineer 414 : 461-466, 1995
14 McKay, R. I., "Grammars in genetic programming: a brief review" China University of Geoscience Press 3-8, 2005
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19 Suh, C. W., "Evolutionary introduction of the dynamic process model for the full-scale upflow multi-layer bio-reactor(UMBR)/oxic process" 2006
20 An, J. Y., "Efficient nitrogen removal in a pilot system based on upflow multi-layer bioreactor for treatment of strong nitrogenous swine wastewater" 42 : 764-772, 2007
21 Suh, C. W., "Effects of influent COD/N ratio and internal recycle ratio on nitrogen removal efficiency in the KNR process" 53 (53): 265-270, 2006
22 Kwon, J. C., "Biological nutrient removal in simple dual sludge system with an UMBR(upflow multilayer bioreactor) and aerobic biofilm reactor" 52 (52): 443-451, 2005
23 AHN,IN-SOOK ; MYEONG-WOONKIM ; HYUN-JOONLA ; KYUNG-MINCHOI ; JOONG-CHEONKWON, "Bacterial Community Composition of Activated Sludge Relative to Type and Efficiency of Municipal Wastewater Treatment Plants" 한국미생물·생명공학회 13 (13): 15-21, 2003
24 Henze M., "Activated sludge model No.1" IAWPRC 1986