TY - RPRT TI - Goal Structuring Notation in a Radiation Hardening Assurance Case for COTS-Based Spacecraft AU - Witulski, Arthur AU - Austin, Rebekah AU - Evans, John AU - Mahadevan, Nag AU - Karsai, Gabor AU - Sierawski, Brian AU - LaBel, Ken AU - Reed, Robert AU - Schrimpf, Ron PY - 2016 UR - https://ntrs.nasa.gov/citations/20160007995 ID - 20160007995 ER -