Study of the cycle variability at an automotive diesel engine fuelled with LPG Liviu Nemoianu, Constantin Pana, Niculae Negurescu, Alexandru Cernat, Dinu Fuiorescu and Cristian Nutu MATEC Web Conf., 112 (2017) 10006 Published online: 03 July 2017 DOI: 10.1051/matecconf/201711210006