@misc{indiciae039c2cf08f73,
  title = {Relationships between controllers of a system.},
  author = {S Eilon},
  year = {1970},
  doi = {10.1038/227233a0},
  url = {https://pubmed.ncbi.nlm.nih.gov/16057905/},
  note = {Source identifier: 16057905}
}