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most citedSteps Toward Determination of the Size and Structure of the Broad-Line Region in Active Galactic Nuclei. XVI. A Thirteen-Year Study of Spectral Variability in NGC 5548

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Young Stellar Complexes in the Giant Galaxy UGC 11973

A. S. Gusev, F. Kh. Sakhibov, O. V. Ezhkova

We present results of the analysis of photometric and spectroscopic observations of the young stellar complexes in the late giant spiral galaxy UGC 11973. Photometric analysis in t…