BECKERMANN, Bernhard; SMIRNOVA, Mirta Castro. On the determinacy of complex Jacobi matrices. MATHEMATICA SCANDINAVICA, [S. l.], v. 95, n. 2, p. 285–298, 2004. DOI: 10.7146/math.scand.a-14460. Disponível em: https://www.mscand.dk/article/view/14460. Acesso em: 5 dec. 2025.