Priyadharshini, R. Ahila, and S. Arivazhagan. “A Quaternionic Wavelet Transform-Based Approach for Object Recognition”. Defence Science Journal 64, no. 4 (June 10, 2014): 350–357. Accessed June 17, 2025. https://publications.drdo.gov.in/ojs/index.php/dsj/article/view/4503.