The steep X-ray spectra of the QSO's PKS 0558-504 and I ZW 1
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| Description | scholarly article in Bulletin of the American Astronomical Society, vol. 18, 1986 |
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author: Hale Bradt Ronald Remillard |
| Publication date | 1986 |
| Language | English |
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| Missing/wrong data? | Edit Wikidata item |