TY  - RPRT
TI  - Evolutionary theory. Mutualism on the move.
AU  - P Hammerstein
AU  - R F Hoekstra
PY  - 1995
DO  - 10.1038/376121a0
UR  - https://pubmed.ncbi.nlm.nih.gov/7603558/
ID  - 7603558
ER  -