TY - RPRT TI - Space tug propulsion system failure mode, effects and criticality analysis AU - Boyd, J. W. AU - Hardison, E. P. AU - Heard, C. B. AU - Orourke, J. C. AU - Osborne, F. AU - Wakefield, L. T. PY - 1972 UR - https://ntrs.nasa.gov/citations/19720017171 ID - 19720017171 ER -