1. G. R. Fowles and W. T. Silfvast, “High-gain laser transition in lead vapor,” Appl. Phys. Lett. 6 (12), 236–237 (1965).
2. M. Bertolotti, “Twenty-five years of the laser: The European contribution to its development,” Opt. Acta 32 (9), 961–980 (1985).
3. A. N. Soldatov and V. I. Solomonov, Self-Terminated Gas Discharge Metal Vapor Lasers (Nauka, Novosibirsk, 1985) [in Russian].
4. P. A. Bokhan, Doctoral Dissertation in Mathematics and Physics (Tomsk State University, Tomsk, 1988).
5. G. S. Evtushenko, Doctoral Dissertation in Mathematics and Physics (Institute of Atmospheric Optics, Siberian Branch, Russian Academy of Sciences, Tomsk, 1994).