TY - RPRT TI - A Launch Requirements Trade Study for Active Space Radiation Shielding for Long Duration Human Missions AU - Singleterry, Robert C., Jr. AU - Bollweg, Ken AU - Martin, Trent AU - Westover, Shayne AU - Battiston, Roberto AU - Burger, William J. AU - Meinke, Rainer PY - 2015 UR - https://ntrs.nasa.gov/citations/20150017038 ID - 20150017038 ER -