TY - RPRT TI - An improved APU for the Space Shuttle Orbiter AU - Mckenna, R. AU - Hagemann, D. AU - Loken, G. AU - Jonakin, J. AU - Baughman, J. PY - 1985 UR - https://ntrs.nasa.gov/citations/19850058694 ID - 19850058694 ER -