@misc{indiciae4074c5b12684,
  title = {Self-reproducing automata, relational systems and cell 1 theory},
  author = {Bianchi, L. and Hamann, J. and Pattee, H.},
  year = {1969},
  url = {https://ntrs.nasa.gov/citations/19700009197},
  note = {Source identifier: 19700009197}
}