TY - RPRT TI - Planar ion trap (retarding potential analyzer) experiment for atmosphere explorer AU - Hanson, W. B. AU - Sanatani, S. AU - Lippincott, C. R. AU - Zuccaro, D. R. PY - 1982 UR - https://ntrs.nasa.gov/citations/19830028298 ID - 19830028298 ER -