@misc{indiciae3e05f811da40,
  title = {Proper study and use of reference material.},
  author = {H A Hein},
  year = {1986},
  doi = {10.1016/0002-9378(86)90434-5},
  url = {https://pubmed.ncbi.nlm.nih.gov/3946499/},
  note = {Source identifier: 3946499}
}