Dissemin is shutting down on January 1st, 2025

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American Astronomical Society, Astrophysical Journal, (425), p. 622, 1994

DOI: 10.1086/174009

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Steps toward determination of the size and structure of the broad-line region in active nuclei. 7: Variability of the optical spectrum of NGC 5548 over years

This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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