@misc{indiciae147af556cec4,
  title = {A note on system modelling, aggregation and reductionism.},
  author = {B P Zeigler},
  year = {1971},
  doi = {10.1016/0020-7101(71)90004-3},
  url = {https://pubmed.ncbi.nlm.nih.gov/5160241/},
  note = {Source identifier: 5160241}
}