Chung, I. M., Na, H. N., Lee, D. S., Kim, N. W., Lee, J. W. and Lee, J. M. (2011).
                           “Spatio-temporal variations in groundwater recharge in the Jincheon region.” Journal
                           of Engineering Geology, Vol. 21, No. 4, pp. 1347-1355 (in Korean).Chung, I. M., Na,
                           H. N., Lee, D. S., Kim, N. W., Lee, J. W. and Lee, J. M. (2011). “Spatio-temporal
                           variations in groundwater recharge in the Jincheon region.” Journal of Engineering
                           Geology, Vol. 21, No. 4, pp. 1347-1355 (in Korean).
