@misc{indiciae0df092815d3a,
  title = {LEVELS OF PRACTICE, LEARNING CURVES, AND SYSTEM VALUES FOR HUMAN PERFORMANCE ON COMPLEX TASKS.},
  author = {R SEIBEL},
  year = {1964},
  doi = {10.1177/001872086400600309},
  url = {https://pubmed.ncbi.nlm.nih.gov/14255081/},
  note = {Source identifier: 14255081}
}