TY  - RPRT
TI  - Ecology, evolution and explanatory patterns in biology.
AU  - W J van der Steen
PY  - 1972
DO  - 10.1016/0022-5193(72)90011-2
UR  - https://pubmed.ncbi.nlm.nih.gov/4673116/
ID  - 4673116
ER  -