TY  - RPRT
TI  - Modelling soil productivity and pollution.
AU  - D J Greenwood
AU  - A Walker
PY  - 1990
DO  - 10.1098/rstb.1990.0172
UR  - https://pubmed.ncbi.nlm.nih.gov/1979879/
ID  - 1979879
ER  -