Baisantry, Munmun, D. S. Negi, and O. P. Manocha. “Change Vector Analysis Using Enhanced PCA and Inverse Triangular Function-Based Thresholding”. Defence Science Journal 62, no. 4 (July 3, 2012): 236–242. Accessed June 16, 2025. https://publications.drdo.gov.in/ojs/index.php/dsj/article/view/1072.