ROSENGREN, Hjalmar. Multilinear Hankel forms of higher order and orthogonal polynomials. Mathematica Scandinavica, Berkeley, CA, United States, v. 82, n. 1, p. 53–88, 1998. DOI: 10.7146/math.scand.a-13825. Disponível em: https://journals.msp.org/mscand/article/view/1003. Acesso em: 25 jul. 2026.