Back to matchesWe found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleGiant impacts on early Mars and the cessation of the Martian dynamo.AuthorsRoberts, J. H.; Lillis, R. J.; Manga, M.PublicationJournal of Geophysical Research. Planets, 2009, Vol 114, Issue E4, pn/aISSN2169-9097Publication typeArticleDOI10.1029/2008JE003287