@misc{indiciaed3fd27a8ff03,
  title = {The evolution of a research program.},
  author = {A T HERTIG},
  year = {1958},
  doi = {10.1016/0002-9378(58)90212-6},
  url = {https://pubmed.ncbi.nlm.nih.gov/13559314/},
  note = {Source identifier: 13559314}
}