@misc{indiciaef6b50e26b9f0,
  title = {Cognitive skill acquisition.},
  author = {K VanLehn},
  year = {1996},
  doi = {10.1146/annurev.psych.47.1.513},
  url = {https://pubmed.ncbi.nlm.nih.gov/15012487/},
  note = {Source identifier: 15012487}
}