Analysis of Gamma「゛」-ray data from solar flares in cycles 21 and 22 [microform] : final report : NASA grant number--NAGW-3538 / principal investigator, W. Thomas Vestrand ; prepared by W.T. Vestrand
原資料の出版事項: [Washington, DC ; Springfield, Va. : National Aeronautics and Space Administration : National Technical Information Service, distributor, 1998]