PYATKIN, Artem V. 1-Mean and 1-Medoid 2-Clustering Problem With Arbitrary Cluster Sizes: Complexity and Approximation. Yugoslav Journal of Operations Research, [S. l.], v. 33, n. 1, p. 59–69, 2022. DOI: 10.2298/YJOR211018008P. Disponível em: https://yujor.erc.fon.bg.ac.rs/index.php/yujor/article/view/724. Acesso em: 1 nov. 2025.