Ricard, André, Anne-Marie Diamy, and Jean-Claude Legrand. “Measuring the Density of N\(_2\) Active Species in N\(_2\) –xCH\(_4\) Afterglows With X= (0-7.5)10\(^{-4}\) by Mass Spectrometry and Optical Spectroscopy at Low Gas Pressure”. Plasmas Afterglows with N2 for Surface Treatments synthesis 2024 (March 26, 2025): 352–364. Accessed July 4, 2026. https://stm.bookpi.org/PANST/article/view/17716.