Back to matchesWe found a matchYour institution may have rights to this item. Sign in to continue.TitleO<sup>+</sup> and He<sup>+</sup> restricted and extended (BI-modal) ion conic distributions.AuthorsPeterson, W. K.; Collin, H. L.; Doherty, M. F.; Bjorklund, C. M.PublicationGeophysical Research Letters, 1992, Vol 19, Issue 14, p1439ISSN0094-8276Publication typeArticleDOI10.1029/92GL01613