TY  - RPRT
TI  - Dynamic equilibrium under periodic perturbations in simple ecosystem models.
AU  - S D Tuljapurkar
AU  - J S Semura
PY  - 1977
DO  - 10.1016/0022-5193(77)90175-8
UR  - https://pubmed.ncbi.nlm.nih.gov/886869/
ID  - 886869
ER  -