@misc{indiciaeea35f24fbd47,
  title = {Space tug propulsion system failure mode, effects and criticality analysis},
  author = {Boyd, J. W. and Hardison, E. P. and Heard, C. B. and Orourke, J. C. and Osborne, F. and Wakefield, L. T.},
  year = {1972},
  url = {https://ntrs.nasa.gov/citations/19720017171},
  note = {Source identifier: 19720017171}
}