@misc{indiciae3dc20686dc94,
  title = {Hierarchical big bang cosmology.},
  author = {G de Vaucouleurs and J R Wertz},
  year = {1971},
  doi = {10.1038/231109a0},
  url = {https://pubmed.ncbi.nlm.nih.gov/16062575/},
  note = {Source identifier: 16062575}
}