Venkatesh, G, and K E. Sreenivasa Murthy. “A Sub-Dictionary Approach for Image Super Resolution Based on Sparse Representation”. International Journal of Engineering and Technology 7, no. 2.20 (April 18, 2018): 272–275. Accessed August 17, 2025. https://mail.sciencepubco.com/index.php/IJET/article/view/14776.