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		Korean Journal of Environment and Ecology :: Vol.32 No.5 pp.469-477 DOI:https://doi.org/10.13047/KJEE.2018.32.5.469 Open abstract    
Korean Journal of Environment and Ecology :: Vol.32 No.5 pp.469-477
			DOI:https://doi.org/10.13047/KJEE.2018.32.5.469
			 
			