滇西和黔中表土中7Be与137Cs分布特征对比研究
白占国, 万国江
A Comparative Study on Distribution of 7Be and 137Cs in the Surface Soils in the Western Yunnan and the Central Guizhou Provinces
BAI Zhan-guo, WAN Guo-jiang
地理科学 . 2002, (1): 43 -48 .  DOI: 10.13249/j.cnki.sgs.2002.01.43