@misc{indiciae534b8c48dbf4,
  title = {Data acquisition system time standard. instruction manual},
  author = {Granata, R. L. and Kushmeider, P. J. and Thacher, J. U.},
  year = {1963},
  url = {https://ntrs.nasa.gov/citations/19650003214},
  note = {Source identifier: 19650003214}
}