Milivojević Danas M, Bogdanović M. Solving the Two-Level Hierarchical Covering Location Problem with an Electromagnetism-Like Metaheuristic. Comput. Inform. [Internet]. 2024 Mar. 21 [cited 2024 May 17];42(6):1471–1490. Available from: https://www.cai.sk/ojs/index.php/cai/article/view/2023_6_1471