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1973IAUS...55...51P - IAU Symp., 55, held in Madrid, Spain, May 11-13, 1972. "X- and Gamma-Ray astronomy". Ed. by H. Bradt and R. Giacconi., 55, 51-73 (1973)
Hard cosmic X-ray sources.
PETERSON L.E.
Journal keyword(s):
Simbad objects: 18
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