Lansbury, G., Gandhi, P., Alexander, D., Assef, R., Aird, J., Annuar, A., …Zhang, W. (2015). NuSTAR Reveals Extreme Absorption in z < 0.5 Type 2 Quasars. Astrophysical Journal, 809(2), Article 115. https://doi.org/10.1088/0004-637x/809/2/115