T. Kamimoto, Y. Deguchi, N. Zhang, R. Nakao, T. Takagi, and J.-Z. Zhang, “Real-time 2D Concentration Measurement of CH4 in Oscillating Flames Using CT Tunable Diode Laser Absorption Spectroscopy”, JAND, vol. 4, no. 3, pp. 295–303, Aug. 2026, doi: 10.5890/JAND.2015.09.009.