GUO, Ren; SÖNMEZ, Nilgün. Cyclic Polygons in Classical Geometry, II. Proceedings of the Bulgarian Academy of Sciences, Sofia, Bulgaria, v. 78, n. 2, p. 159–170, 2025. DOI: 10.7546/CRABS.2025.02.01. Disponível em: https://www.proceedings.bas.bg/index.php/cr/article/view/695. Acesso em: 2 nov. 2026.