TY - RPRT TI - Supportability Challenges, Metrics, and Key Decisions for Future Human Spaceflight AU - Owens, Andrew C. AU - de Weck, Olivier L. AU - Stromgren, Chel AU - Cirillo, William AU - Goodliff, Kandyce PY - 2017 UR - https://ntrs.nasa.gov/citations/20170009115 ID - 20170009115 ER -