AJAI, Ajai. Cyclic pentagons and hexagons with integer sides, diagonals and areas. Serdica Mathematical Journal, Sofia, Bulgaria, v. 46, n. 4, p. 307–322, 2021. Disponível em: https://serdica.math.bas.bg/index.php/serdica/article/view/178. Acesso em: 8 oct. 2026.