ISOTOPE STUDIES OF SHIHUA CAVE-I:δD,δ18O AND TRITIUM ACTIVITY OF SHIHUA CAVE,BEIJING
Li Hongchun, Teh-Lung Ku, Zhao Shushen, Liu Tungsheng, Jiao Wenjiang, Yin linhui, Li Tieying, Lu Jinbo
SEISMOLOGY AND GEOLOGY . 1996, (4): 325 -328 .