TY  - RPRT
TI  - 100 years of Pb deposition and transport in soils in Champaign, Illinois, U.S.A
AU  - Y. Zhang
PY  - 2003
DO  - 10.1023/a:1023957226204
UR  - https://pubs.usgs.gov/publication/70026091
ID  - 70026091
ER  -