TY  - RPRT
TI  - A note on system modelling, aggregation and reductionism.
AU  - B P Zeigler
PY  - 1971
DO  - 10.1016/0020-7101(71)90004-3
UR  - https://pubmed.ncbi.nlm.nih.gov/5160241/
ID  - 5160241
ER  -