VizieR online Data Catalogue associated with article published in journal Astronomical Journal (AAS) with title 'Are the variations in quasar optical flux driven by thermal fluctuations?' (bibcode: 2009ApJ...698..895K)
Kelly, B. C. (Creator), Bechtold, J. (Creator), Siemiginowska, A. (Creator) (2011). Variations in QSOs optical flux. Centre de Donnees Strasbourg (CDS). 10.26093/cds/vizier.16980895