@misc{indiciae67aa0eb3c98d,
  title = {Key Issues for Navigation and Time Dissemination in NASA's Space Exploration Program},
  author = {Nelson, R. A. and Brodsky, B. and Oria, A. J. and Connolly, J. W. and Sands, O. S. and Welch, B. W. and Ely T. and Orr, R. and Schuchman, L.},
  year = {2006},
  url = {https://ntrs.nasa.gov/citations/20060051788},
  note = {Source identifier: 20060051788}
}