VizieR online Data Catalogue associated with article published in journal Astronomical Journal (AAS) with title 'A sample of quasars with strong nitrogen emission lines from the Sloan Digital Sky Survey.' (bibcode: 2008ApJ...679..962J)
Jiang, L. (Creator), Fan, X. (Creator), Vestergaard, M. (Creator) (2010). Quasars with strong nitrogen emission lines. Centre de Donnees Strasbourg (CDS). 10.26093/cds/vizier.16790962