@misc{indiciae0c13d9bf29c6,
  title = {Technology Directions for the 21st Century},
  author = {Crimi, Giles and Verheggen, Henry and Botta, Robert and Paul, Heywood and Vuong, Xuyen},
  year = {1998},
  url = {https://ntrs.nasa.gov/citations/19980197313},
  note = {Source identifier: 19980197313}
}