Back to matchesWe found a matchYour institution may have rights to this item. Sign in to continue.TitleSolar extreme ultraviolet variability of the X-class flare on 21 April 2002 and the terrestrial photoelectron response.AuthorsWoods, Thomas N.; Bailey, Scott M.; Peterson, W. K.; Solomon, Stanley C.; Warren, Harry P.; Eparvier, Francis G.; Garcia, Howard; Carlson, Charles W.; McFadden, James P.PublicationSpace Weather: The International Journal of Research & Applications, 2003, Vol 1, Issue 1, pn/aISSN1539-4956Publication typeArticleDOI10.1029/2003SW000010