Development and operations of the astrophysics data system [microform] : NASA grant NCCW-0024, semi-annual report--report no. 3, for the period 1 October 1993 through 31 March 1994 / principal investigator, S.S. Murray ([NASA contractor report] ; NASA-CR-200960)
Development and operations of the astrophysics data system [microform] : NASA grant NCCW-0024, semi-annual report--report no. 3, for the period 1 October 1993 through 31 March 1994 / principal investigator, S.S. Murray
原資料の出版事項: Cambridge, Mass. ; [Washington, DC ; Springfield, Va. : Smithsonian Institution, Astrophysical Observatory : National Aeronautics and Space Administration : National Technical Information Service, distributor, 1996]