Double-Peaked Profiles: Ubiquitous Signatures of Disks in the Broad Emission Lines of Active Galactic Nuclei - Storchi-Bergmann, Thaisa; Schimoia, Jaderson S; Peterson, B M; Elvis, Martin; Denney, K.D; Eracleous, M; Silva, Rodrigo Nemmen da (Astrophysical Journal (Online), 2017)