TY  - RPRT
TI  - Predation, competition and environmental variables: some mathematical models.
AU  - V L Engstrom-Heg
PY  - 1970
DO  - 10.1016/0022-5193(70)90136-0
UR  - https://pubmed.ncbi.nlm.nih.gov/5465637/
ID  - 5465637
ER  -