Waleed Niklawy, Moatasem Shahin, Mohamed I. Amin and Ali Elmaihy 2022. Experimental Investigations of Injection and Combustion Parameters of a Homogeneous Charge Compression Ignition (HCCI) Engine with a Multi-Injection Common Rail System. Communications - Scientific letters of the University of Zilina. 24, 2 (Apr. 2022), B120-B134. DOI:https://doi.org/10.26552/com.C.2022.2.B120-B134.