@misc{indiciaee08cb4d45b5e,
  title = {Summary and projections for the future.},
  author = {G Sills},
  year = {1972},
  doi = {10.1111/j.1547-5069.1972.tb01106.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/4483839/},
  note = {Source identifier: 4483839}
}