Khalilarya, S. , Jafarmadar, S. , Khatamnezhad, H. , Javadirad, G. , Pourfallah, M.. "Simultaneously Reduction of NOx and Soot Emissions in a DI Heavy Duty diesel Engine Operating at High Cooled EGR Rates". World Academy of Science, Engineering and Technology, Open Science Index 57, International Journal of Mechanical and Mechatronics Engineering (2011), 5(9), 1929 - 1937.