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                <dcterms:bibliographicCitation>E. Bon, S. Zucker, H. Netzer, P. Marziani, P. Jovanović, A. Shapovalova, S. Komossa, C. Gaskell, L. Popović, S. Britzen, V. Chavushyan, A. Burenkov, S. Sergeev, G. La Mura, J. Valdes, M. Stalevski, Evidence for Periodicity in 43 year-long Monitoring of NGC 5548, ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, Vol. 225, No. 2, pp. 1 - 15, Aug, 2016</dcterms:bibliographicCitation>
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