Choi S, Kim S, Choi E, Shin Y, Hong T.  Analysis of the Causes of Clustered Scismicity Registered in Yeoncheon, the Middle Part of the Korean Peninsula through Gravity Field Interpretation and Modeling.  Econ. Environ. Geol. 2022;55:633-648.  https://doi.org/10.9719/EEG.2022.55.6.633