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 May 8, 2026. http://cames.ippt.gov.pl/index.php/cames/article/view/26.