Janković, Olivera. “An Efficient Genetic Algorithm for the Uncapacitated R-Allocation P-Hub Maximal Covering Problem”. Yugoslav Journal of Operations Research 28, no. 2 (May 1, 2018): 201–218. Accessed August 26, 2025. https://yujor.erc.fon.bg.ac.rs/index.php/yujor/article/view/535.