Methane-air flame thermometry using planar lase-induced fluorescence (PLIF) Victor Fabelinsky, Vitaly Kobtsev, Sergey Kostritsa, Dimitrii Kozlov, Valerii Smirnov and Konstantin Vereschagin MATEC Web Conf., 209 (2018) 00002 Published online: 02 October 2018 DOI: 10.1051/matecconf/201820900002