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		Korean Journal of Environment and Ecology :: Vol.30 No.1 pp.81-91 DOI:https://doi.org/10.13047/KJEE.2016.30.1.081 Open abstract    
Korean Journal of Environment and Ecology :: Vol.30 No.1 pp.81-91
			DOI:https://doi.org/10.13047/KJEE.2016.30.1.081
			 
			