[1]K. Ha, D.-C. Koh, B.-W. Yum, и K.-K. Lee, PMI, т. 170, вып. 2, сс. 18-21, апр. 2007.
[1]K. Ha, D.-C. Koh, B.-W. Yum, and K.-K. Lee, "Aquifer Diffusivity Determination from Aquifer Responses to the River Stage Fluctuations in a Mangyeong-River Floodplain", PMI, vol. 170, no. 2, pp. 18-21, Apr. 2007.