@misc{indiciaeb2f4ac74ef2c,
  title = {On evolutionary systems.},
  author = {J M Alvarez de Lorenzana and L M Ward},
  year = {1987},
  doi = {10.1002/bs.3830320104},
  url = {https://pubmed.ncbi.nlm.nih.gov/3689299/},
  note = {Source identifier: 3689299}
}