@misc{indiciae424c76ef8e99,
  title = {Helmet mounted display systems for helicopter simulation},
  author = {Haworth, Loran A. and Bucher, Nancy and Runnings, David},
  year = {1989},
  url = {https://ntrs.nasa.gov/citations/19900044289},
  note = {Source identifier: 19900044289}
}