The REE Tracer Method for the Study of Rill Erosion Process on Loess Sloping Surface
LI Mian1, LI Zhan-bin, DING Wen-feng, LIU Pu-ling
Acta Geographica Sinica . 2002, (2): 218 -223 .  DOI: 10.11821/xb200202012