Hrushikesava Raju, S, and M Nagabhusana Rao. “Improvement of Time Complexity and Space on Optimal Binary Search Trees Using Post Dynamic Programming Methodology and Data Preprocessing”. International Journal of Computer Sciences and Engineering 4, no. 11 (November 11, 2025): 133–136. Accessed February 2, 2026. https://ijcse.isroset.org/index.php/j/article/view/1263.