@misc{indiciae04b3fbb77c10,
  title = {Computer graphics as an aid to learning.},
  author = {K R Hammond},
  year = {1971},
  doi = {10.1126/science.172.3986.903},
  url = {https://pubmed.ncbi.nlm.nih.gov/5573561/},
  note = {Source identifier: 5573561}
}