@misc{indiciaebb27b70ed84f,
  title = {Projects underway.},
  author = {D Maddison},
  year = {1969},
  doi = {10.1016/0037-7856(69)90040-7},
  url = {https://pubmed.ncbi.nlm.nih.gov/5809626/},
  note = {Source identifier: 5809626}
}