Jo Kyoung-nam, Woo Kyung Sik, Yi Sangheon, Yang Dong Yoon, Lim Hyoun Soo, Wang Yongjin, Cheng Hai, Edwards R Lawrence
Korea Institute of Geoscience and Mineral Resources, Daejeon 305-350, South Korea.
Department of Geology, Kangwon National University, Gangwondo 200-701, South
Nature. 2015 Oct 1;526(7571):E2-3. doi: 10.1038/nature14977.