TY  - RPRT
TI  - A Darwinian evolutionary system. I. Definition and basic properties.
AU  - F Papentin
PY  - 1973
DO  - 10.1016/0022-5193(73)90108-2
UR  - https://pubmed.ncbi.nlm.nih.gov/4728726/
ID  - 4728726
ER  -