Repdigits as absolute value of difference between Lucas and Fibonacci numbers. Gulf Journal of Mathematics, [S. l.], v. 19, n. 2, p. 1–19, 2025. DOI: 10.56947/gjom.v19i2.2680. Disponível em: https://gjom.org/index.php/gjom/article/view/2680. Acesso em: 27 aug. 2026.