@misc{indiciaef9abf72a49e5,
  title = {A model for materials development and evaluation.},
  author = {J R Armstrong},
  year = {1971},
  doi = {10.1177/001440297103800406},
  url = {https://pubmed.ncbi.nlm.nih.gov/4107646/},
  note = {Source identifier: 4107646}
}