@misc{indiciaef08d4dff4c13,
  title = {Time reverse automata patterns generated by Spencer-Brown's modulator: invertibility based on autopoiesis.},
  author = {Y Gunji and T Nakamura},
  year = {1991},
  doi = {10.1016/0303-2647(91)90003-4},
  url = {https://pubmed.ncbi.nlm.nih.gov/1912385/},
  note = {Source identifier: 1912385}
}