@misc{indiciaebc423286d7e5,
  title = {Information retrieval system},
  author = {Berg, R. F. and Holcomb, J. E. and Kelroy, E. A. and Levine, D. A. and Mee, C., III},
  year = {1970},
  url = {https://ntrs.nasa.gov/citations/19700000538},
  note = {Source identifier: 19700000538}
}