Saliha Mohammed Belkebir; Benyoucef Khelidj; Miloud Tahar Abbes. Study of the Combustion Process of a Homogeneous Charge Compression Ignition (HCCI) Engine and a Partially Premixed Combustion (PPC) Mode of a Compression Ignition Engine Using Natural Gas As an Alternative Fuel. J. Adv. Res. Fluid Mech. Therm. Sc. 2024, 84, 98-115.