J. Houseman and F. Hoehn, A Two-Charge Engine Concept: Hydrogen Enrichment, 1974.

R. Stebar and F. Parks, Emission Control with Lean Operation Using Hydrogen-Supplemented Fuel, SAE Technical Paper, vol.740187, 1974.

F. Parks, A Single-Cylinder Engine Study of Hydrogen-Rich Fuels, SAE Technical Paper, vol.760099, 1976.

K. Varde, Combustion Characteristics of Small Spark Ignition Engines Using Hydrogen Supplemented Fuel Mixtures, SAE Technical Paper 810921, 1981.

F. Schafer, An Investigation of the Addition of Hydrogen to Methanol on the Operation of an Unthrottled Otto Engine, 1981.

F. Yan, L. Xu, and Y. Wang, Application of hydrogen enriched natural gas in spark ignition IC engines: from fundamental fuel properties to engine performances and emissions, Renewable and Sustainable Energy Reviews, vol.82, pp.1457-1488, 2018.

C. Ji, S. Wang, Y. , and H. , Experimental Study on Combustion and Emissions Characteristics of a Spark Ignition Engine Blended with Hydrogen, SAE Technical Paper, 1923.

C. Ji and S. Wang, Effect of hydrogen addition on idle performance of a spark-ignited gasoline engine at lean conditions with a fixed spark advance, Energy Fuels, vol.23, pp.4385-4394, 2009.

C. Ji and S. Wang, Effect of hydrogen addition on combustion and emissions performance of a spark ignition gasoline engine at lean conditions, International Journal of Hydrogen Energy, vol.34, issue.18, pp.7823-7834, 2009.

Y. Du, X. Yu, L. Liu, R. Li, X. Zuo et al., Effect of addition of hydrogen and exhaust gas recirculation on characteristics of hydrogen gasoline engine, International Journal of Hydrogen Energy, vol.42, pp.8288-8298, 2017.

M. Gerty and J. Heywood, An Investigation of Gasoline Engine Knock Limited Performance and the Effects of Hydrogen Enhancement, 2006.

Z. Ivani?, F. Ayala, J. Goldwitz, and J. B. Heywood, Effects of Hydrogen Enhancement on Efficiency and NOx Emissions of Lean and EGR-Diluted Mixtures in a SI Engine, 2005.

L. Jing-ding, L. Ying-ging, and D. Tian-shen, An Experimental Study on Combustion of Gasoline-hydrogen Mixed Fuel, SAE Technical Paper, vol.830897, 1983.

J. Kim, K. Chun, S. Song, and H. Baek, Effect of Hydrogen as an Additive on Lean Limit and Emissions of a Turbo Gasoline Direct Injection Engine, SAE Technical Paper, 1886.

T. Alger and B. Mangold, Dedicated EGR: A New Concept in High Efficiency Engines, SAE Int. J. Engines, vol.2, issue.1, pp.620-631, 2009.

M. Ohtomo, T. Suzuoki, S. Yamamoto, and H. Miyagawa, Effect of Fuel-Air Mixture Dilution on Knock Intensity in an SI Engine, 2018.

C. T. Bowman, Kinetics of Pollutant Formation and Destruction in Combustion, Prog. Energy Combust. Sci, vol.1, pp.90005-90007, 1975.

P. Adomeit, J. Scharf, M. Thewes, B. Morcinkowski, P. Hoppe et al., Extreme Lean Gasoline Technology -Best Efficiency and Lowest Emission Powertrains, 4 th International Engine Congress, 2017.

H. Takeori, H. Hosoe, T. Morita, and T. Endo, A Study of Aftertreatment System for Spark-Assisted HCCI Engine, SAE Technical Paper, 2013.

H. Takeori, K. Wada, Y. Matsuo, and T. Morita, Study of an Aftertreatment System for HLSI Lean-burn Engine, 2018.

L. Francqueville and J. Michel, On the Effects of EGR on Spark-Ignited Gasoline Combustion at High Load, SAE Int. J. Engines, vol.7, issue.4, 2014.

H. Hanabusa, T. Kondo, K. Hashimoto, and H. Sono, Study on Homogeneous Lean Charge Spark Ignition Combustion, 2013.

G. Bourhis and X. Gautrot, Technological Levers for the Enhancement of Mixture Dilution for Spark Ignited Engines, SIA Powertrain Conference, 2013.

N. Iida, Research and Development of Super-Lean Burn for High Efficiency SI Engine, The 9 th International Conference on Modeling and Diagnostics for Advanced Engine Systems Symposium (COMODIA), 2017.

M. Lecompte, L. Malbec, G. Font, and B. Walter, How to Improve Light Duty Diesel Based on Heavy Duty Diesel Thermodynamic Analysis?, 2013.

E. Koehler, R. Osborne, M. Keenan, and T. Downes, Engine and aftertreatment strategies for lean gasoline engines to meet real driving emissions legislation, SIA Powertrain Conference, 2017.

N. Iafrate and J. Zaccardi, A Numerical Study on Charge Motion Effects in Ultra-Lean Conditions, CONVERGE User conference, 2018.

C. Müller, K. Habermann, B. Morcinkowski, T. Uhlmann, and C. Schernus, Development of a Pre-chamber for Automobile SI Engine Applications, International Conference on Ignition Systems for Gasoline Engines, 2018.