A. F. Maksimenko, A. S. Provorov, M. Yu. Reushev, S. A. Fen', “Waveguide CO<sub>2</sub> laser with combined excitation by dc and transverse rf capacitance discharges”, Kvantovaya Elektronika, 21:9 (1994), 827–828 [Quantum Electron., 24:9 (1994), 769–770]
