@misc{indiciae54d52f02d3ba,
  title = {The road ahead.},
  author = {W C Keettel},
  year = {1967},
  doi = {10.1016/0002-9378(67)90148-2},
  url = {https://pubmed.ncbi.nlm.nih.gov/5621447/},
  note = {Source identifier: 5621447}
}