BEASLEY, LeRoy; SANTANA, Manuel A.; MOUSLEY, Jonathan; BROWN, David E. Cordiality of digraphs. Journal of Algebra Combinatorics Discrete Structures and Applications, [S. l.], v. 10, n. 1, p. 1–13, 2022. DOI: 10.13069/jacodesmath.v10i1.195. Disponível em: https://jacodesmath.com/index.php/jacodesmath/article/view/195. Acesso em: 12 sep. 2026.