@misc{indiciae28521ec83e0d,
  title = {Note on complex systems.},
  author = {S A Newman},
  year = {1970},
  doi = {10.1016/0022-5193(70)90078-0},
  url = {https://pubmed.ncbi.nlm.nih.gov/5487650/},
  note = {Source identifier: 5487650}
}