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The BL lac phenomenon x-ray observations of transition objects ; Determination of the x-ray spectrum

[Greenbelt, Md. : National Aeronautics and Space Administration, Goddard Space Flight Center ; Springfield, Va. : For sale by the National Technical Information Service, 1994] 1994

High resolution X- and gamma-ray spectroscopy of cosmic X-ray sources

Lin, Robert P., author.
Berkeley, California : by Space Sciences Laboratory, University of California ; Washington, D.C. : NASA Headquarters, September 1, 1983. 1983-

Observational study of ion-electron equilibration and of cloud evaporation in supernova remnants und

Teske, Richard G.
Ann Arbor, Mich. : University of Michigan ; [Washington, D.C. : National Aeronautics and Space Administration, 1986] 1986

Solid state synthesis and properties of monoclinic celsian

Bansal, Narottam P., author.
Cleveland, Ohio : National Aeronautics and Space Administration, Lewis Research Center, December 1996. 1996-

Two component model for x-ray emission of radio selected QSO's

[Washington, D.C. : National Aeronautics and Space Administration, 1986] 1986

Variable spectra of active galaxies final technical report

Halpern, Jules P.
Marshall Space Flight Center, AL : National Aeronautics and Space Administration, George C. Marshall Space Flight Center, [1988] 1988

The X-ray properties of high redshift, optically selected QSOs

Anderson, Scott F.
Seattle, Wash. : Dept. of Astronomy, University of Washington ; [Washington, D.C. : National Aeronautics and Space Administration], 1985. 1985