1. Engine combustion at large bore-to-stroke ratios;Siewert;SAE Transactions,1978
2. Freudenstein F., Maki ER. Variable-displacement piston engine. US Patent #4,270,495, 1981.
3. Computer simulation of power cycle for spark-ignition engine;Gupta;IE(I)-Journal-MC,1995
4. Modeling of nitric-oxide formation in spark-ignition engines with a multi-zone burned gas;Raine;Journal of Combustion and Flame,1995
5. Analytical study on the effect of spark-plug location on the performance of spark-ignition engines using LPG and gasoline as fuels;Yamin;IE(I)-Journal-MC,1999