@misc{indiciae7de98b38a37b, title = {Application of environmental tracers to mixing, evolution, and nitrate contamination of ground water in Jeju Island, Korea}, author = {D.-C. Koh and Niel Plummer and Solomon D. Kip and E. Busenberg and Y.-J. Kim and H.-W. Chang}, year = {2006}, doi = {10.1016/j.jhydrol.2005.11.021}, url = {https://pubs.usgs.gov/publication/70028042}, note = {Source identifier: 70028042} }