Beletsky, A. Y., A. A. Beletsky, and A. A. Davletyants. “Fast Transformation Algorithms of Haar”. Proceedings of National Aviation University 17, no. 2 (June 24, 2003): 14–17. Accessed November 29, 2024. https://jrnl.nau.edu.ua/index.php/visnik/article/view/11739.