TY - RPRT TI - Final Test Results for the Ground Operations Demonstration Unit for Liquid Hydrogen AU - W U Notardonato AU - A M Swanger AU - J E Fesmire AU - K M Jumper AU - W L Johnson AU - T M Tomsik PY - 2017 UR - https://ntrs.nasa.gov/citations/20180006814 ID - 20180006814 ER -