Back to matchesWe found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleThe ancient oxygen exosphere of Mars: Implications for atmosphere evolution.AuthorsZhang, M. H. G.; Luhmann, J. G.; Bougher, S. W.; Nagy, A. F.PublicationJournal of Geophysical Research. Planets, 1993, Vol 98, Issue E6, p10915ISSN2169-9097Publication typeArticleDOI10.1029/93JE00231