Voitikov, S. V., R. Chulkov, V. Markevich, V. Orlovich, D. Q. Khanh, P. H. Minh, and N. X. Tu. “Raman Laser With a Singly Resonant Cavity: Theoretical Model and Experiment”. Communications in Physics, vol. 28, no. 4, Dec. 2018, p. 287, doi:10.15625/0868-3166/28/4/12940.