LARCOMBE, PETER J.; FENNESSEY, ERIC J.; KOEPF, WOLFRAM A. Integral proofs of two alternating sign binomial coefficient identities. Utilitas Mathematica , [S. l.], v. 66, 2004. Disponível em: https://utilitasmathematica.com/index.php/Index/article/view/327. Acesso em: 8 may. 2026.