AOUNALLAH, Soufyane; LOUCIF, Kamel; KHENNAFI-BENGHALEM, Nafissa. Retraction Note: Friction and wear of polystyrene crystal sliding against steel 100Cr6 in unlubricated contact (PCSS: (2022), 23(2), (293-301), https://doi.org/10.15330/pcss.23.2.293-301) . Physics and Chemistry of Solid State, [S. l.], v. 23, n. 2, p. 293–301, 2022. DOI: 10.15330/pcss.23.2.293-301. Disponível em: https://journals.pnu.edu.ua/index.php/pcss/article/view/5392. Acesso em: 25 apr. 2024.