The low-luminosity end of the radius-luminosity relationship for active galactic nuclei

M.C. Bentz, K.D. Denney, Marianne Vestergaard, C.J. Grier, B.M. Peterson, G. De Rosa, R.W. Pogge, A.J. Barth, V.N. Bennert, G. Canalizo, A.V. Filippenko, W. Li, E.L. Gates, J.E. Greene, M.A. Malkan, D. Stern, T. Treu, J.-H. Woo