@misc{indiciaea29e29e85bef,
  title = {XPI: The Xanadu Parameter Interface},
  author = {White, N. and Barrett, P. and Oneel, B. and Jacobs, P.},
  year = {1992},
  url = {https://ntrs.nasa.gov/citations/19940018040},
  note = {Source identifier: 19940018040}
}