800-year CH4 Record in Dunde Ice Core
XU Baiqing, YAO Tandong, TIAN Lide, HUO Wenmian, DUAN Keqin, J. Chappellaz
JOURNAL OF GLACIOLOGY AND GEOCRYOLOGY . 1999, (1): 15 -18 .  DOI: 10.7522/j.issn.1000-0240.1999.0003