Some New Constructions of Ptolemaic andQuasi-Ptolemaic Spaces. Letters in Nonlinear Analysis and its Applications, [S. l.], v. 4, n. 4, p. 227–233, 2026. DOI: 10.66147/lnaa.20264494. Disponível em: https://lettersinnonlinearanalysis.com/index.php/lnaa/article/view/94. Acesso em: 30 sep. 2026.