The use of radiative transition rates to study the changes in the excitation of Cu ions in a Ne glow discharge caused by small additions of H-2, O-2 and N-2 - Weiss, Z; Steers, EBM; Mushtaq, S; Hoffmann, V; Pickering, JC (Spectrochimica Acta Part B: Atomic Spectroscopy, 2016)