TY - RPRT TI - Nuclear Cryogenic Propulsion Stage (NCPS) Task 6: Affordable Development Strategy and Space Capable Cryogenic Thermal Engine AU - Gerrish, Harold AU - Kenny, Jeremy AU - Coote, David AU - Creel, Libby AU - Doughty, Glen PY - 2014 UR - https://ntrs.nasa.gov/citations/20140008579 ID - 20140008579 ER -