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Date and Time of the Query: 2019-06-18 T00:03:34 PDT
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For refcode 1987IAUS..121..109O:
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IAU Symposium
1987 vol. 121 p. 109
OSTERBROCK D.E.
Seyfert galaxies : classification, morphology, observations at optical wavelengt hs, environmental factors
Retrieve 9 NED objects in this reference.
Please click here for ADS abstract

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