@misc{indiciae3efb756df4b5,
  title = {Virtual humans for validating maintenance procedures},
  author = {Badler, Norman I. and Erignac, Charles A. and Liu, Ying},
  year = {2002},
  url = {https://ntrs.nasa.gov/citations/20040088107},
  note = {Source identifier: 20040088107}
}