1. Choi, S. B., and Hedrick, J. K., 2000, “ Based Controller Design Method for Improving Air/Fuel Characteristics of Spark Ignition Engines,” IEEE Trans. Control Syst. Technol., 6(3), pp. 325–334.
2. Grizzle.J.W,Julia Buckland and Jing Sun(2001),"Idle speed control of a Direct Injection Spark Ignition Stratified charge Engine "Control Systems Laboratory, Electrical Engineering and Computer Science Department, University of Michigan, Ann Arbor, MI 48109-2122, U.S.A.
3. Manzie, C., Palaniswami, M., and Watson, H., 2001, “Gaussian Networks for Fuel Injection Control,” Proc. Inst. Mech. Eng., Part D(J. Automob. Eng.), 215(10), pp. 1053–1068.
4. Manzie, C., Palaniswami, M., Ralph, D., Watson, H., and Yi, X., 2002, “Model Predictive Control of a Fuel Injection System With a Radial Basis Function Network Observer,” ASME J. Dyn. Syst. Meas. Control, 124(4), pp. 648– 658.
5. Nakazono, T. ( 1994) "Study of Lean Burn Gas Engine" JSME, vol. 37, no. 3.
6. Nakazono, T. and Natsume, Y. ( 1994) "Effect of Dimensions of Pre- chamber on Lean Burn Gas Engine" JSME, vol. 37, no. 4.