ZHELINSKI, V.; ZLATANOV, B. On the UC and UC$^*$ properties and the existence of best proximity points in metric spaces. Ann. Sofia Univ. Fac. Math. and Inf., [S. l.], v. 109, p. 121–146, 2022. DOI: 10.60063/gsu.fmi.109.121-146. Disponível em: https://stipendii.uni-sofia.bg/index.php/fmi/article/view/556. Acesso em: 22 nov. 2024.