@misc{indiciaedcada073dfd4,
  title = {Demand and bifocal demand pacing.},
  author = {L Lemberg and A Castellanos and B V Berkovits},
  year = {1973},
  url = {https://pubmed.ncbi.nlm.nih.gov/4777859/},
  note = {Source identifier: 4777859}
}