Fuerhapter, A., Piock, W. F., Fraid, G. K: CSI-Controlled Auto Ignition — the Best Solution for the Fuel Consumption — Versus Emission Trade-Off?, SAE Paper, 2003-01-0754(2003)
Koopmans, L., Strom, H., Lundgren, S., Backlund, 0., Denbratt, I.: Demonstrating a SI-HCCI-SI Mode Change on a Volvo 5-Cylinder Electronic Valve Control Engine, SAE World Congress, 2003-01-0753(2003)