Effect of the temperature of waste cooking oil methyl esters on the value of nitrogen oxides emission from the self-ignition engineDamian Marcinkowski, Mirosław Czechlowski, Weronika Gracz, Wojciech Golimowski and Jakub MazurkiewiczE3S Web Conf., 171 (2020) 01008DOI: https://doi.org/10.1051/e3sconf/202017101008