Nowak, Iwona, and Grzegorz Nowak. “Real Ant Colony Optimization As a Tool for Multi-Criteria Problems”. Computer Assisted Methods in Engineering and Science 22, no. 3 (September 30, 2015): 255–265. Accessed March 5, 2026. https://cames.ippt.gov.pl/index.php/cames/article/view/26.