“EFFECT OF NOx REDUCTION CATALYTIC CONVERTORS IN LEAN BASED ENGINES - A REVIEW PAPER”. International Journal of Advance Engineering and Research Development (IJAERD) 5, no. 8 (August 25, 2018): 27–29. Accessed September 8, 2025. https://www.ijaerd.org/index.php/IJAERD/article/view/3786.