DEFEZ E.; JÓDAR L.; LAW A.; PONSODA E. Three-term recurrences and matrix orthogonal polynomials. Utilitas Mathematica , [S. l.], v. 57, 2000. Disponível em: https://utilitasmathematica.com/index.php/Index/article/view/185. Acesso em: 8 may. 2026.