G. Sun, M. Akhmetiev, Z.M. Dong, A.R. Ashraf, Y.W. Sun, E. Bugdaeva, D.L. Dilcher, L. Goloneva, I.C. Harding, K. Johnson, T. Kezina, T. Kodrul, J.S. Lu, V. Markevitch, H. Nishida, H. Okada, S.O. Park, C.L. Sun, X.Z. Xiong, Y.L. Xing & Z.L. Zhou,
2002, Journal of Geoscience Research NE Asia, 5(2), 105-113