TY - RPRT TI - He 584 A dayglow at Neptune AU - Parkinson, Christopher D. AU - Mcconnell, John C. AU - Sandel, Bill R. AU - Yelle, Roger V. AU - Broadfoot, A. Lyle PY - 1990 UR - https://ntrs.nasa.gov/citations/19900065490 ID - 19900065490 ER -