BECKERMANN, Bernhard; SMIRNOVA, Mirta Castro. On the determinacy of complex Jacobi matrices. Mathematica Scandinavica, Berkeley, CA, United States, v. 95, n. 2, p. 285–298, 2004. DOI: 10.7146/math.scand.a-14460. Disponível em: https://journals.msp.org/mscand/article/view/759. Acesso em: 24 jul. 2026.