TY - RPRT TI - Evidence for a Second Martian Dynamo from Electron Reflection Magnetometry AU - Lillis, R. J. AU - Manga, M. AU - Mitchell, D. L. AU - Lin, R. P. AU - Acuna, M. H. PY - 2005 UR - https://ntrs.nasa.gov/citations/20050170997 ID - 20050170997 ER -