ZAVARZINA, O.O. On expand-contract plasticity in quasi-metric spaces. Carpathian Mathematical Publications, [S. l.], v. 15, n. 2, p. 524–528, 2023. DOI: 10.15330/cmp.15.2.524-528. Disponível em: https://journals.pnu.edu.ua/index.php/cmp/article/view/6157. Acesso em: 12 may. 2024.