Effects of CNG quantity on combustion characteristics and emissions of a dual fuelled automotive diesel engineSilviu Rotaru, Constantin Pana, Nicolae Negurescu, Alexandru Cernat, Dinu Fuiorescu and Cristian Nikolaos NuţuE3S Web Conf., 180 (2020) 01008DOI: https://doi.org/10.1051/e3sconf/202018001008