@misc{indiciae9d5018b9efdf,
  title = {NASA TLA workload analysis support. Volume 2: Metering and spacing studies validation data},
  author = {Sundstrom, J. L.},
  year = {1980},
  url = {https://ntrs.nasa.gov/citations/19800018592},
  note = {Source identifier: 19800018592}
}