On the connection between fixed point theorems on metric spaces with graphs and $\mathbb{P}$ sets. Annual of Sofia University St. Kliment Ohridski. Faculty of Mathematics and Informatics, [S. l.], v. 112, p. 31–44, 2025. DOI: 10.60063/gsu.fmi.112.31-44. Disponível em: https://annual.uni-sofia.bg/index.php/fmi/article/view/1885. Acesso em: 14 dec. 2025.