Dasyra KM, Tacconi LJ, Davies RI, Genzel R, Lutz D, Peterson BM, Veilleux S, Baker AJ, Schweitzer M, Sturm E.
Host dynamics and origin of Palomar-Green QSOs. The Astrophysical Journal. 2007;657:102.
Netzer H, Lutz D, Schweitzer M, Contursi A, Sturm E, Tacconi LJ, Veilleux S, Kim D-C, Rupke D, Baker AJ, et al. Spitzer quasar and ULIRG evolution study (QUEST). II. The spectral energy distributions of palomar-green quasars. The Astrophysical Journal. 2007;666:806.