TY - RPRT TI - Prioritized System Science Targets for Heliophysics AU - Spann, James Frederick AU - Christensen, Andrew B. AU - SaintCyr, Orville Chris AU - Posner, Arik AU - Giles, Barbara L. PY - 2009 UR - https://ntrs.nasa.gov/citations/20100002036 ID - 20100002036 ER -