Todorović-Zarkula, Slavica, Branimir Todorović, and Miomir Stanković. “On-Line Blind Separation of Non-Stationary Signals”. Yugoslav Journal of Operations Research 15, no. 1 (March 1, 2005): 79–95. Accessed September 7, 2025. https://yujor.erc.fon.bg.ac.rs/index.php/yujor/article/view/144.